23221313214021 has 12 divisors (see below), whose sum is σ = 36122042777548. Its totient is φ = 14290038900864.

The previous prime is 23221313213941. The next prime is 23221313214139. The reversal of 23221313214021 is 12041231312232.

23221313214021 is a `hidden beast` number, since 2 + 3 + 221 + 3 + 1 + 32 + 1 + 402 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 2981113028100 + 20240200185921 = 1726590^2 + 4498911^2 .

It is not a de Polignac number, because 23221313214021 - 2⁹ = 23221313213509 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23221313214221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 99236381140 + ... + 99236381373.

Almost surely, 2^{23221313214021} is an apocalyptic number.

It is an amenable number.

23221313214021 is a deficient number, since it is larger than the sum of its proper divisors (12900729563527).

23221313214021 is a wasteful number, since it uses less digits than its factorization.

23221313214021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198472762532 (or 198472762529 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

Adding to 23221313214021 its reverse (12041231312232), we get a palindrome (35262544526253).

The spelling of 23221313214021 in words is "twenty-three trillion, two hundred twenty-one billion, three hundred thirteen million, two hundred fourteen thousand, twenty-one".