12118912 has 32 divisors (see below), whose sum is σ = 26003880. Its totient is φ = 5592576.

The previous prime is 12118891. The next prime is 12118921. The reversal of 12118912 is 21981121.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1978 + ... + 5305.

Almost surely, 2^12118912 is an apocalyptic number.

It is an amenable number.

12118912 is an abundant number, since it is smaller than the sum of its proper divisors (13884968).

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

12118912 is an equidigital number, since it uses as much as digits as its factorization.

12118912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7310 (or 7298 counting only the distinct ones).

The product of its digits is 288, while the sum is 25.

The square root of 12118912 is about 3481.2227736817. Note that the first 3 decimals coincide. The cubic root of 12118912 is about 229.6965879478.

The spelling of 12118912 in words is "twelve million, one hundred eighteen thousand, nine hundred twelve".