12167215251 has 16 divisors (see below), whose sum is σ = 16253952000. Its totient is φ = 8095997088.

The previous prime is 12167215241. The next prime is 12167215253. The reversal of 12167215251 is 15251276121.

It is not a de Polignac number, because 12167215251 - 2¹⁴ = 12167198867 is a prime.

It is a super-2 number, since 2×12167215251² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12167215253) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6241825 + ... + 6243773.

It is an arithmetic number, because the mean of its divisors is an integer number (1015872000).

Almost surely, 2^12167215251 is an apocalyptic number.

12167215251 is a deficient number, since it is larger than the sum of its proper divisors (4086736749).

12167215251 is a wasteful number, since it uses less digits than its factorization.

12167215251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4858.

The product of its digits is 8400, while the sum is 33.

The spelling of 12167215251 in words is "twelve billion, one hundred sixty-seven million, two hundred fifteen thousand, two hundred fifty-one".