2197221968 has 20 divisors (see below), whose sum is σ = 4394444928. Its totient is φ = 1063171680.

The previous prime is 2197221931. The next prime is 2197221977. The reversal of 2197221968 is 8691227912.

2197221968 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2214446 + ... + 2215437.

Almost surely, 2^2197221968 is an apocalyptic number.

It is an amenable number.

2197221968 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

2197221968 is a wasteful number, since it uses less digits than its factorization.

2197221968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4429922 (or 4429916 counting only the distinct ones).

The product of its digits is 217728, while the sum is 47.

The square root of 2197221968 is about 46874.5343230202. The cubic root of 2197221968 is about 1300.0437791963.

The spelling of 2197221968 in words is "two billion, one hundred ninety-seven million, two hundred twenty-one thousand, nine hundred sixty-eight".