12122735157 has 48 divisors (see below), whose sum is σ = 19579484288. Its totient is φ = 7451196480.

The previous prime is 12122735081. The next prime is 12122735161. The reversal of 12122735157 is 75153722121.

12122735157 is a `hidden beast` number, since 12 + 122 + 7 + 3 + 515 + 7 = 666.

It is a Wieferich number.

It is a de Polignac number, because none of the positive numbers 2^k-12122735157 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12122733157) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3451032 + ... + 3454542.

Almost surely, 2^12122735157 is an apocalyptic number.

It is an amenable number.

12122735157 is a deficient number, since it is larger than the sum of its proper divisors (7456749131).

12122735157 is a wasteful number, since it uses less digits than its factorization.

12122735157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4632 (or 4620 counting only the distinct ones).

The product of its digits is 29400, while the sum is 36.

The spelling of 12122735157 in words is "twelve billion, one hundred twenty-two million, seven hundred thirty-five thousand, one hundred fifty-seven".