22222121179 has 2 divisors, whose sum is σ = 22222121180. Its totient is φ = 22222121178.

The previous prime is 22222121177. The next prime is 22222121221. The reversal of 22222121179 is 97112122222.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22222121179 - 2¹ = 22222121177 is a prime.

Together with 22222121177, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 22222121179.

It is not a weakly prime, because it can be changed into another prime (22222121177) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11111060589 + 11111060590.

It is an arithmetic number, because the mean of its divisors is an integer number (11111060590).

Almost surely, 2^22222121179 is an apocalyptic number.

22222121179 is a deficient number, since it is larger than the sum of its proper divisors (1).

22222121179 is an equidigital number, since it uses as much as digits as its factorization.

22222121179 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4032, while the sum is 31.

The spelling of 22222121179 in words is "twenty-two billion, two hundred twenty-two million, one hundred twenty-one thousand, one hundred seventy-nine".