12266880428 has 24 divisors (see below), whose sum is σ = 23435166720. Its totient is φ = 5571907920.

The previous prime is 12266880419. The next prime is 12266880443. The reversal of 12266880428 is 82408866221.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35348 + ... + 160571.

It is an arithmetic number, because the mean of its divisors is an integer number (976465280).

Almost surely, 2^12266880428 is an apocalyptic number.

It is an amenable number.

12266880428 is a deficient number, since it is larger than the sum of its proper divisors (11168286292).

12266880428 is a wasteful number, since it uses less digits than its factorization.

12266880428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197357 (or 197355 counting only the distinct ones).

The product of its (nonzero) digits is 589824, while the sum is 47.

The spelling of 12266880428 in words is "twelve billion, two hundred sixty-six million, eight hundred eighty thousand, four hundred twenty-eight".