22431353551512 has 16 divisors (see below), whose sum is σ = 56078383878840. Its totient is φ = 7477117850496.

The previous prime is 22431353551483. The next prime is 22431353551513. The reversal of 22431353551512 is 21515535313422.

It is a super-2 number, since 2×22431353551512² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22431353551513) 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, 467319865633 + ... + 467319865680.

Almost surely, 2^{22431353551512} is an apocalyptic number.

It is an amenable number.

22431353551512 is an abundant number, since it is smaller than the sum of its proper divisors (33647030327328).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22431353551512 is a wasteful number, since it uses less digits than its factorization.

22431353551512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 934639731322 (or 934639731318 counting only the distinct ones).

The product of its digits is 540000, while the sum is 42.

Adding to 22431353551512 its reverse (21515535313422), we get a palindrome (43946888864934).

The spelling of 22431353551512 in words is "twenty-two trillion, four hundred thirty-one billion, three hundred fifty-three million, five hundred fifty-one thousand, five hundred twelve".