4242233121 has 16 divisors (see below), whose sum is σ = 6478961664. Its totient is φ = 2418655824.

The previous prime is 4242233119. The next prime is 4242233147. The reversal of 4242233121 is 1213322424.

It is a happy number.

It is not a de Polignac number, because 4242233121 - 2¹ = 4242233119 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4242233091 and 4242233100.

It is not an unprimeable number, because it can be changed into a prime (4242233111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 218701 + ... + 237306.

It is an arithmetic number, because the mean of its divisors is an integer number (404935104).

Almost surely, 2^4242233121 is an apocalyptic number.

It is an amenable number.

4242233121 is a deficient number, since it is larger than the sum of its proper divisors (2236728543).

4242233121 is a wasteful number, since it uses less digits than its factorization.

4242233121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 456460.

The product of its digits is 2304, while the sum is 24.

The square root of 4242233121 is about 65132.4275687618. The cubic root of 4242233121 is about 1618.8185666737.

Adding to 4242233121 its reverse (1213322424), we get a palindrome (5455555545).

The spelling of 4242233121 in words is "four billion, two hundred forty-two million, two hundred thirty-three thousand, one hundred twenty-one".