12156147224 has 32 divisors (see below), whose sum is σ = 24551281440. Its totient is φ = 5609337600.

The previous prime is 12156147217. The next prime is 12156147247. The reversal of 12156147224 is 42274165121.

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, 647084 + ... + 665604.

It is an arithmetic number, because the mean of its divisors is an integer number (767227545).

Almost surely, 2^12156147224 is an apocalyptic number.

It is an amenable number.

12156147224 is an abundant number, since it is smaller than the sum of its proper divisors (12395134216).

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

12156147224 is a wasteful number, since it uses less digits than its factorization.

12156147224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24851 (or 24847 counting only the distinct ones).

The product of its digits is 26880, while the sum is 35.

The spelling of 12156147224 in words is "twelve billion, one hundred fifty-six million, one hundred forty-seven thousand, two hundred twenty-four".