12224512156 has 24 divisors (see below), whose sum is σ = 21530517120. Its totient is φ = 6072994032.

The previous prime is 12224512151. The next prime is 12224512159. The reversal of 12224512156 is 65121542221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12224512151) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 929281 + ... + 942343.

It is an arithmetic number, because the mean of its divisors is an integer number (897104880).

Almost surely, 2^12224512156 is an apocalyptic number.

It is an amenable number.

12224512156 is a deficient number, since it is larger than the sum of its proper divisors (9306004964).

12224512156 is a wasteful number, since it uses less digits than its factorization.

12224512156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14553 (or 14551 counting only the distinct ones).

The product of its digits is 9600, while the sum is 31.

The spelling of 12224512156 in words is "twelve billion, two hundred twenty-four million, five hundred twelve thousand, one hundred fifty-six".