22431122400 has 72 divisors (see below), whose sum is σ = 73013311224. Its totient is φ = 5981632000.

The previous prime is 22431122369. The next prime is 22431122411. The reversal of 22431122400 is 422113422.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4670751 + ... + 4675550.

It is an arithmetic number, because the mean of its divisors is an integer number (1014073767).

Almost surely, 2^22431122400 is an apocalyptic number.

22431122400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22431122400 is an abundant number, since it is smaller than the sum of its proper divisors (50582188824).

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

22431122400 is a wasteful number, since it uses less digits than its factorization.

22431122400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9346324 (or 9346311 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 22431122400 its reverse (422113422), we get a palindrome (22853235822).

The spelling of 22431122400 in words is "twenty-two billion, four hundred thirty-one million, one hundred twenty-two thousand, four hundred".