12120512 has 28 divisors (see below), whose sum is σ = 24185880. Its totient is φ = 6026496.

The previous prime is 12120509. The next prime is 12120523. The reversal of 12120512 is 21502121.

It is a super-2 number, since 2×12120512² = 293813622284288, which contains 22 as substring.

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, 14243 + ... + 15069.

Almost surely, 2^12120512 is an apocalyptic number.

It is an amenable number.

12120512 is a deficient number, since it is larger than the sum of its proper divisors (12065368).

12120512 is an equidigital number, since it uses as much as digits as its factorization.

12120512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1068 (or 1058 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 14.

The square root of 12120512 is about 3481.4525704079. The cubic root of 12120512 is about 229.7066960710.

Adding to 12120512 its reverse (21502121), we get a palindrome (33622633).

The spelling of 12120512 in words is "twelve million, one hundred twenty thousand, five hundred twelve".