12156219244 has 48 divisors (see below), whose sum is σ = 23102021376. Its totient is φ = 5563656000.

The previous prime is 12156219221. The next prime is 12156219281. The reversal of 12156219244 is 44291265121.

12156219244 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4262419 + ... + 4265269.

It is an arithmetic number, because the mean of its divisors is an integer number (481292112).

Almost surely, 2^12156219244 is an apocalyptic number.

It is an amenable number.

12156219244 is a deficient number, since it is larger than the sum of its proper divisors (10945802132).

12156219244 is a wasteful number, since it uses less digits than its factorization.

12156219244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3526 (or 3524 counting only the distinct ones).

The product of its digits is 34560, while the sum is 37.

The spelling of 12156219244 in words is "twelve billion, one hundred fifty-six million, two hundred nineteen thousand, two hundred forty-four".