2231223101 has 4 divisors (see below), whose sum is σ = 2232037500. Its totient is φ = 2230408704.

The previous prime is 2231223091. The next prime is 2231223131. The reversal of 2231223101 is 1013221322.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1027202500 + 1204020601 = 32050^2 + 34699^2 .

It is a cyclic number.

It is not a de Polignac number, because 2231223101 - 2²⁶ = 2164114237 is a prime.

It is a super-3 number, since 3×2231223101³ (a number of 29 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2231223101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2231223131) 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, 403076 + ... + 408573.

It is an arithmetic number, because the mean of its divisors is an integer number (558009375).

Almost surely, 2^2231223101 is an apocalyptic number.

It is an amenable number.

2231223101 is a deficient number, since it is larger than the sum of its proper divisors (814399).

2231223101 is an equidigital number, since it uses as much as digits as its factorization.

2231223101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 814398.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 2231223101 is about 47235.8243391602. The cubic root of 2231223101 is about 1306.7153694348.

Adding to 2231223101 its reverse (1013221322), we get a palindrome (3244444423).

The spelling of 2231223101 in words is "two billion, two hundred thirty-one million, two hundred twenty-three thousand, one hundred one".