12521112 has 32 divisors (see below), whose sum is σ = 33145200. Its totient is φ = 3928064.

The previous prime is 12521107. The next prime is 12521137. The reversal of 12521112 is 21112521.

It is a junction number, because it is equal to n+sod(n) for n = 12521091 and 12521100.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14937 + ... + 15752.

Almost surely, 2^12521112 is an apocalyptic number.

12521112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12521112 is an abundant number, since it is smaller than the sum of its proper divisors (20624088).

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

12521112 is a wasteful number, since it uses less digits than its factorization.

12521112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30715 (or 30711 counting only the distinct ones).

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

The square root of 12521112 is about 3538.5183339924. The cubic root of 12521112 is about 232.2100258224.

Adding to 12521112 its reverse (21112521), we get a palindrome (33633633).

The spelling of 12521112 in words is "twelve million, five hundred twenty-one thousand, one hundred twelve".