12227447616 has 56 divisors (see below), whose sum is σ = 32494423200. Its totient is φ = 4057846272.

The previous prime is 12227447563. The next prime is 12227447629. The reversal of 12227447616 is 61674472221.

It is a congruent 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, 96691 + ... + 183858.

Almost surely, 2^12227447616 is an apocalyptic number.

12227447616 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

12227447616 is an abundant number, since it is smaller than the sum of its proper divisors (20266975584).

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

12227447616 is a wasteful number, since it uses less digits than its factorization.

12227447616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280791 (or 280781 counting only the distinct ones).

The product of its digits is 225792, while the sum is 42.

The spelling of 12227447616 in words is "twelve billion, two hundred twenty-seven million, four hundred forty-seven thousand, six hundred sixteen".