22513210900 has 18 divisors (see below), whose sum is σ = 48853667870. Its totient is φ = 9005284320.

The previous prime is 22513210843. The next prime is 22513210927. The reversal of 22513210900 is 901231522.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 5173061776 + 17340149124 = 71924^2 + 131682^2 .

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 112565955 + ... + 112566154.

Almost surely, 2^22513210900 is an apocalyptic number.

22513210900 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22513210900 is an abundant number, since it is smaller than the sum of its proper divisors (26340456970).

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

22513210900 is a wasteful number, since it uses less digits than its factorization.

22513210900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225132123 (or 225132116 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 25.

The spelling of 22513210900 in words is "twenty-two billion, five hundred thirteen million, two hundred ten thousand, nine hundred".