23212313211021 has 16 divisors (see below), whose sum is σ = 34142728322880. Its totient is φ = 13910000424320.

The previous prime is 23212313210993. The next prime is 23212313211041. The reversal of 23212313211021 is 12011231321232.

It is not a de Polignac number, because 23212313211021 - 2²⁵ = 23212279656589 is a prime.

It is a super-2 number, since 2×23212313211021² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 23212313210982 and 23212313211000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23212313211041) 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, 3951701730 + ... + 3951707603.

It is an arithmetic number, because the mean of its divisors is an integer number (2133920520180).

Almost surely, 2^{23212313211021} is an apocalyptic number.

It is an amenable number.

23212313211021 is a deficient number, since it is larger than the sum of its proper divisors (10930415111859).

23212313211021 is a wasteful number, since it uses less digits than its factorization.

23212313211021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7903409436.

The product of its (nonzero) digits is 864, while the sum is 24.

Adding to 23212313211021 its reverse (12011231321232), we get a palindrome (35223544532253).

The spelling of 23212313211021 in words is "twenty-three trillion, two hundred twelve billion, three hundred thirteen million, two hundred eleven thousand, twenty-one".