12151278511224 has 32 divisors (see below), whose sum is σ = 30396936780240. Its totient is φ = 4047927436800.

The previous prime is 12151278511223. The next prime is 12151278511231. The reversal of 12151278511224 is 42211587215121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12151278511223) by changing a digit.

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, 156131137 + ... + 156208944.

Almost surely, 2^{12151278511224} is an apocalyptic number.

It is an amenable number.

12151278511224 is an abundant number, since it is smaller than the sum of its proper divisors (18245658269016).

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

12151278511224 is a wasteful number, since it uses less digits than its factorization.

12151278511224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 312341711 (or 312341707 counting only the distinct ones).

The product of its digits is 89600, while the sum is 42.

The spelling of 12151278511224 in words is "twelve trillion, one hundred fifty-one billion, two hundred seventy-eight million, five hundred eleven thousand, two hundred twenty-four".