22257422400 has 84 divisors (see below), whose sum is σ = 73022909072. Its totient is φ = 5935311360.

The previous prime is 22257422393. The next prime is 22257422449. The reversal of 22257422400 is 422475222.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2313682 + ... + 2323281.

Almost surely, 2^22257422400 is an apocalyptic number.

22257422400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22257422400 is an abundant number, since it is smaller than the sum of its proper divisors (50765486672).

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

22257422400 is a wasteful number, since it uses less digits than its factorization.

22257422400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4636988 (or 4636973 counting only the distinct ones).

The product of its (nonzero) digits is 17920, while the sum is 30.

Adding to 22257422400 its reverse (422475222), we get a palindrome (22679897622).

The spelling of 22257422400 in words is "twenty-two billion, two hundred fifty-seven million, four hundred twenty-two thousand, four hundred".