21922905164179 has 2 divisors, whose sum is σ = 21922905164180. Its totient is φ = 21922905164178.

The previous prime is 21922905164101. The next prime is 21922905164183. The reversal of 21922905164179 is 97146150922912.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 21922905164179 - 2⁷ = 21922905164051 is a prime.

It is a super-2 number, since 2×21922905164179² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (21922915164179) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10961452582089 + 10961452582090.

It is an arithmetic number, because the mean of its divisors is an integer number (10961452582090).

Almost surely, 2^{21922905164179} is an apocalyptic number.

21922905164179 is a deficient number, since it is larger than the sum of its proper divisors (1).

21922905164179 is an equidigital number, since it uses as much as digits as its factorization.

21922905164179 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4898880, while the sum is 58.

The spelling of 21922905164179 in words is "twenty-one trillion, nine hundred twenty-two billion, nine hundred five million, one hundred sixty-four thousand, one hundred seventy-nine".