22557036100 has 81 divisors (see below), whose sum is σ = 51247987063. Its totient is φ = 8617301440.

The previous prime is 22557036079. The next prime is 22557036101. The reversal of 22557036100 is 163075522.

The square root of 22557036100 is 150190.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 3816521284 + 18740514816 = 61778^2 + 136896^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22557036101) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 34543374 + ... + 34544026.

Almost surely, 2^22557036100 is an apocalyptic number.

22557036100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

22557036100 is the 150190-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22557036100

22557036100 is an abundant number, since it is smaller than the sum of its proper divisors (28690950963).

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

22557036100 is an equidigital number, since it uses as much as digits as its factorization.

22557036100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1366 (or 683 counting only the distinct ones).

The product of its (nonzero) digits is 12600, while the sum is 31.

The spelling of 22557036100 in words is "twenty-two billion, five hundred fifty-seven million, thirty-six thousand, one hundred".