22020955872 has 192 divisors, whose sum is σ = 61869588480. Its totient is φ = 6841961984.

The previous prime is 22020955867. The next prime is 22020955909. The reversal of 22020955872 is 27855902022.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 45972529 + ... + 45973007.

It is an arithmetic number, because the mean of its divisors is an integer number (322237440).

Almost surely, 2^22020955872 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22020955872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30934794240).

22020955872 is an abundant number, since it is smaller than the sum of its proper divisors (39848632608).

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

22020955872 is a wasteful number, since it uses less digits than its factorization.

22020955872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1005 (or 997 counting only the distinct ones).

The product of its (nonzero) digits is 201600, while the sum is 42.

The spelling of 22020955872 in words is "twenty-two billion, twenty million, nine hundred fifty-five thousand, eight hundred seventy-two".