12172322159 has 2 divisors, whose sum is σ = 12172322160. Its totient is φ = 12172322158.

The previous prime is 12172322111. The next prime is 12172322161. The reversal of 12172322159 is 95122327121.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12172322159 is a prime.

It is a Sophie Germain prime.

Together with 12172322161, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12172324159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6086161079 + 6086161080.

It is an arithmetic number, because the mean of its divisors is an integer number (6086161080).

Almost surely, 2^12172322159 is an apocalyptic number.

12172322159 is a deficient number, since it is larger than the sum of its proper divisors (1).

12172322159 is an equidigital number, since it uses as much as digits as its factorization.

12172322159 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15120, while the sum is 35.

The spelling of 12172322159 in words is "twelve billion, one hundred seventy-two million, three hundred twenty-two thousand, one hundred fifty-nine".