223230121 has 4 divisors (see below), whose sum is σ = 223260100. Its totient is φ = 223200144.

The previous prime is 223230109. The next prime is 223230127. The reversal of 223230121 is 121032322.

223230121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 121032322 = 2 ⋅60516161.

It can be written as a sum of positive squares in 2 ways, for example, as 173949721 + 49280400 = 13189^2 + 7020^2 .

It is a cyclic number.

It is not a de Polignac number, because 223230121 - 2¹¹ = 223228073 is a prime.

It is a super-3 number, since 3×223230121³ (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 223230095 and 223230104.

It is not an unprimeable number, because it can be changed into a prime (223230127) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5695 + ... + 21883.

It is an arithmetic number, because the mean of its divisors is an integer number (55815025).

Almost surely, 2^223230121 is an apocalyptic number.

It is an amenable number.

223230121 is a deficient number, since it is larger than the sum of its proper divisors (29979).

223230121 is a wasteful number, since it uses less digits than its factorization.

223230121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29978.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 223230121 is about 14940.8875573040. The cubic root of 223230121 is about 606.6212201126.

Adding to 223230121 its reverse (121032322), we get a palindrome (344262443).

It can be divided in two parts, 2232301 and 21, that added together give a palindrome (2232322).

The spelling of 223230121 in words is "two hundred twenty-three million, two hundred thirty thousand, one hundred twenty-one".