22621270452 has 24 divisors (see below), whose sum is σ = 57581416032. Its totient is φ = 6854930400.

The previous prime is 22621270433. The next prime is 22621270457. The reversal of 22621270452 is 25407212622.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22621270457) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 85686499 + ... + 85686762.

It is an arithmetic number, because the mean of its divisors is an integer number (2399225668).

Almost surely, 2^22621270452 is an apocalyptic number.

22621270452 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

22621270452 is an abundant number, since it is smaller than the sum of its proper divisors (34960145580).

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

22621270452 is a wasteful number, since it uses less digits than its factorization.

22621270452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171373279 (or 171373277 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 33.

The spelling of 22621270452 in words is "twenty-two billion, six hundred twenty-one million, two hundred seventy thousand, four hundred fifty-two".