12120160172 has 12 divisors (see below), whose sum is σ = 21230240976. Its totient is φ = 6054377040.

The previous prime is 12120160163. The next prime is 12120160177. The reversal of 12120160172 is 27106102121.

It is not an unprimeable number, because it can be changed into a prime (12120160177) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1420979 + ... + 1429482.

It is an arithmetic number, because the mean of its divisors is an integer number (1769186748).

Almost surely, 2^12120160172 is an apocalyptic number.

It is an amenable number.

12120160172 is a deficient number, since it is larger than the sum of its proper divisors (9110080804).

12120160172 is a wasteful number, since it uses less digits than its factorization.

12120160172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2851528 (or 2851526 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 23.

Adding to 12120160172 its reverse (27106102121), we get a palindrome (39226262293).

The spelling of 12120160172 in words is "twelve billion, one hundred twenty million, one hundred sixty thousand, one hundred seventy-two".