12231615452 has 24 divisors (see below), whose sum is σ = 24465616896. Its totient is φ = 5241609648.

The previous prime is 12231615449. The next prime is 12231615509. The reversal of 12231615452 is 25451613221.

It is a super-2 number, since 2×12231615452² (a number of 21 digits) 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 (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 468413 + ... + 493835.

It is an arithmetic number, because the mean of its divisors is an integer number (1019400704).

Almost surely, 2^12231615452 is an apocalyptic number.

It is an amenable number.

12231615452 is an abundant number, since it is smaller than the sum of its proper divisors (12234001444).

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

12231615452 is a wasteful number, since it uses less digits than its factorization.

12231615452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42617 (or 42615 counting only the distinct ones).

The product of its digits is 14400, while the sum is 32.

The spelling of 12231615452 in words is "twelve billion, two hundred thirty-one million, six hundred fifteen thousand, four hundred fifty-two".