22125179520 has 192 divisors, whose sum is σ = 77542676640. Its totient is φ = 5811886080.

The previous prime is 22125179491. The next prime is 22125179543. The reversal of 22125179520 is 2597152122.

22125179520 is a `hidden beast` number, since 2 + 2 + 12 + 51 + 79 + 520 = 666.

It is a tau number, because it is divible by the number of its divisors (192).

It is a Harshad number since it is a multiple of its sum of digits (36).

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, 357255 + ... + 414585.

Almost surely, 2^22125179520 is an apocalyptic number.

22125179520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22125179520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38771338320).

22125179520 is an abundant number, since it is smaller than the sum of its proper divisors (55417497120).

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

22125179520 is a wasteful number, since it uses less digits than its factorization.

22125179520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57423 (or 57408 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 36.

The spelling of 22125179520 in words is "twenty-two billion, one hundred twenty-five million, one hundred seventy-nine thousand, five hundred twenty".