12126424512 has 56 divisors (see below), whose sum is σ = 32097843856. Its totient is φ = 4040460288.

The previous prime is 12126424507. The next prime is 12126424567. The reversal of 12126424512 is 21542462121.

It is a self number, because there is not a number n which added to its sum of digits gives 12126424512.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 502188 + ... + 525780.

Almost surely, 2^12126424512 is an apocalyptic number.

12126424512 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12126424512 is an abundant number, since it is smaller than the sum of its proper divisors (19971419344).

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

12126424512 is a wasteful number, since it uses less digits than its factorization.

12126424512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26285 (or 26275 counting only the distinct ones).

The product of its digits is 7680, while the sum is 30.

Adding to 12126424512 its reverse (21542462121), we get a palindrome (33668886633).

The spelling of 12126424512 in words is "twelve billion, one hundred twenty-six million, four hundred twenty-four thousand, five hundred twelve".