22197868672 has 96 divisors (see below), whose sum is σ = 52639258320. Its totient is φ = 9292018176.

The previous prime is 22197868633. The next prime is 22197868687. The reversal of 22197868672 is 27686879122.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 228543 + ... + 310849.

Almost surely, 2^22197868672 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 22197868672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26319629160).

22197868672 is an abundant number, since it is smaller than the sum of its proper divisors (30441389648).

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

22197868672 is an equidigital number, since it uses as much as digits as its factorization.

22197868672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82378 (or 82359 counting only the distinct ones).

The product of its digits is 8128512, while the sum is 58.

The spelling of 22197868672 in words is "twenty-two billion, one hundred ninety-seven million, eight hundred sixty-eight thousand, six hundred seventy-two".