12115200120 has 64 divisors (see below), whose sum is σ = 37190862720. Its totient is φ = 3155585664.

The previous prime is 12115200101. The next prime is 12115200133. The reversal of 12115200120 is 2100251121.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 12115200120.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1168794 + ... + 1179113.

It is an arithmetic number, because the mean of its divisors is an integer number (581107230).

Almost surely, 2^12115200120 is an apocalyptic number.

12115200120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12115200120 is an abundant number, since it is smaller than the sum of its proper divisors (25075662600).

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

12115200120 is a wasteful number, since it uses less digits than its factorization.

12115200120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2347964 (or 2347960 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 15.

Adding to 12115200120 its reverse (2100251121), we get a palindrome (14215451241).

The spelling of 12115200120 in words is "twelve billion, one hundred fifteen million, two hundred thousand, one hundred twenty".