12172161207007 has 2 divisors, whose sum is σ = 12172161207008. Its totient is φ = 12172161207006.

The previous prime is 12172161206999. The next prime is 12172161207137. The reversal of 12172161207007 is 70070216127121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12172161207007 - 2³ = 12172161206999 is a prime.

It is a super-2 number, since 2×12172161207007² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12172161207607) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6086080603503 + 6086080603504.

It is an arithmetic number, because the mean of its divisors is an integer number (6086080603504).

Almost surely, 2^{12172161207007} is an apocalyptic number.

12172161207007 is a deficient number, since it is larger than the sum of its proper divisors (1).

12172161207007 is an equidigital number, since it uses as much as digits as its factorization.

12172161207007 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16464, while the sum is 37.

The spelling of 12172161207007 in words is "twelve trillion, one hundred seventy-two billion, one hundred sixty-one million, two hundred seven thousand, seven".