12116512 has 24 divisors (see below), whose sum is σ = 25258716. Its totient is φ = 5701632.

The previous prime is 12116483. The next prime is 12116521. The reversal of 12116512 is 21561121.

It can be written as a sum of positive squares in 2 ways, for example, as 11532816 + 583696 = 3396^2 + 764^2 .

It is a super-2 number, since 2×12116512² = 293619726092288, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12116512.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10593 + ... + 11680.

Almost surely, 2^12116512 is an apocalyptic number.

It is an amenable number.

12116512 is an abundant number, since it is smaller than the sum of its proper divisors (13142204).

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

12116512 is a wasteful number, since it uses less digits than its factorization.

12116512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22300 (or 22292 counting only the distinct ones).

The product of its digits is 120, while the sum is 19.

The square root of 12116512 is about 3480.8780501477. The cubic root of 12116512 is about 229.6814240946.

Adding to 12116512 its reverse (21561121), we get a palindrome (33677633).

The spelling of 12116512 in words is "twelve million, one hundred sixteen thousand, five hundred twelve".