22220420179 has 2 divisors, whose sum is σ = 22220420180. Its totient is φ = 22220420178.

The previous prime is 22220420177. The next prime is 22220420273. The reversal of 22220420179 is 97102402222.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22220420179 - 2¹ = 22220420177 is a prime.

Together with 22220420177, 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 22220420179.

It is not a weakly prime, because it can be changed into another prime (22220420177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11110210089 + 11110210090.

It is an arithmetic number, because the mean of its divisors is an integer number (11110210090).

Almost surely, 2^22220420179 is an apocalyptic number.

22220420179 is a deficient number, since it is larger than the sum of its proper divisors (1).

22220420179 is an equidigital number, since it uses as much as digits as its factorization.

22220420179 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8064, while the sum is 31.

The spelling of 22220420179 in words is "twenty-two billion, two hundred twenty million, four hundred twenty thousand, one hundred seventy-nine".