12247032172 has 24 divisors (see below), whose sum is σ = 21836285856. Its totient is φ = 6008946048.

The previous prime is 12247032131. The next prime is 12247032199. The reversal of 12247032172 is 27123074221.

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, 48928 + ... + 163975.

It is an arithmetic number, because the mean of its divisors is an integer number (909845244).

Almost surely, 2^12247032172 is an apocalyptic number.

It is an amenable number.

12247032172 is a deficient number, since it is larger than the sum of its proper divisors (9589253684).

12247032172 is a wasteful number, since it uses less digits than its factorization.

12247032172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213177 (or 213175 counting only the distinct ones).

The product of its (nonzero) digits is 9408, while the sum is 31.

The spelling of 12247032172 in words is "twelve billion, two hundred forty-seven million, thirty-two thousand, one hundred seventy-two".