201220122179 has 2 divisors, whose sum is σ = 201220122180. Its totient is φ = 201220122178.

The previous prime is 201220122167. The next prime is 201220122211. The reversal of 201220122179 is 971221022102.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 201220122179 - 2¹² = 201220118083 is a prime.

It is not a weakly prime, because it can be changed into another prime (201220122109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100610061089 + 100610061090.

It is an arithmetic number, because the mean of its divisors is an integer number (100610061090).

Almost surely, 2^201220122179 is an apocalyptic number.

201220122179 is a deficient number, since it is larger than the sum of its proper divisors (1).

201220122179 is an equidigital number, since it uses as much as digits as its factorization.

201220122179 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2016, while the sum is 29.

The spelling of 201220122179 in words is "two hundred one billion, two hundred twenty million, one hundred twenty-two thousand, one hundred seventy-nine".