12117722424 has 16 divisors (see below), whose sum is σ = 30294306120. Its totient is φ = 4039240800.

The previous prime is 12117722387. The next prime is 12117722479. The reversal of 12117722424 is 42422771121.

It is a super-2 number, since 2×12117722424² (a number of 21 digits) contains 22 as substring.

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, 252452527 + ... + 252452574.

Almost surely, 2^12117722424 is an apocalyptic number.

It is an amenable number.

12117722424 is an abundant number, since it is smaller than the sum of its proper divisors (18176583696).

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

12117722424 is a wasteful number, since it uses less digits than its factorization.

12117722424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 504905110 (or 504905106 counting only the distinct ones).

The product of its digits is 12544, while the sum is 33.

The spelling of 12117722424 in words is "twelve billion, one hundred seventeen million, seven hundred twenty-two thousand, four hundred twenty-four".