23252222021 has 16 divisors (see below), whose sum is σ = 28728620160. Its totient is φ = 18371188800.

The previous prime is 23252222017. The next prime is 23252222023. The reversal of 23252222021 is 12022225232.

It is a cyclic number.

It is not a de Polignac number, because 23252222021 - 2² = 23252222017 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23252222023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2357630 + ... + 2367471.

It is an arithmetic number, because the mean of its divisors is an integer number (1795538760).

Almost surely, 2^23252222021 is an apocalyptic number.

It is an amenable number.

23252222021 is a deficient number, since it is larger than the sum of its proper divisors (5476398139).

23252222021 is a wasteful number, since it uses less digits than its factorization.

23252222021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4725164.

The product of its (nonzero) digits is 1920, while the sum is 23.

Adding to 23252222021 its reverse (12022225232), we get a palindrome (35274447253).

The spelling of 23252222021 in words is "twenty-three billion, two hundred fifty-two million, two hundred twenty-two thousand, twenty-one".