12228900872 has 8 divisors (see below), whose sum is σ = 22929189150. Its totient is φ = 6114450432.

The previous prime is 12228900857. The next prime is 12228900917. The reversal of 12228900872 is 27800982221.

It can be written as a sum of positive squares in only one way, i.e., 12180653956 + 48246916 = 110366^2 + 6946^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 764306297 + ... + 764306312.

Almost surely, 2^12228900872 is an apocalyptic number.

It is an amenable number.

12228900872 is a deficient number, since it is larger than the sum of its proper divisors (10700288278).

12228900872 is a wasteful number, since it uses less digits than its factorization.

12228900872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1528612615 (or 1528612611 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 41.

The spelling of 12228900872 in words is "twelve billion, two hundred twenty-eight million, nine hundred thousand, eight hundred seventy-two".