22499490900 has 72 divisors (see below), whose sum is σ = 65385502560. Its totient is φ = 5973415040.

The previous prime is 22499490841. The next prime is 22499490943. The reversal of 22499490900 is 909499422.

It is a self number, because there is not a number n which added to its sum of digits gives 22499490900.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 97095 + ... + 233294.

It is an arithmetic number, because the mean of its divisors is an integer number (908131980).

Almost surely, 2^22499490900 is an apocalyptic number.

22499490900 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22499490900 is an abundant number, since it is smaller than the sum of its proper divisors (42886011660).

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

22499490900 is a wasteful number, since it uses less digits than its factorization.

22499490900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 330633 (or 330626 counting only the distinct ones).

The product of its (nonzero) digits is 419904, while the sum is 48.

The spelling of 22499490900 in words is "twenty-two billion, four hundred ninety-nine million, four hundred ninety thousand, nine hundred".