122201019979 has 2 divisors, whose sum is σ = 122201019980. Its totient is φ = 122201019978.

The previous prime is 122201019977. The next prime is 122201020013. The reversal of 122201019979 is 979910102221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 122201019979 - 2¹ = 122201019977 is a prime.

Together with 122201019977, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (122201019977) 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, 61100509989 + 61100509990.

It is an arithmetic number, because the mean of its divisors is an integer number (61100509990).

Almost surely, 2^122201019979 is an apocalyptic number.

122201019979 is a deficient number, since it is larger than the sum of its proper divisors (1).

122201019979 is an equidigital number, since it uses as much as digits as its factorization.

122201019979 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 40824, while the sum is 43.

The spelling of 122201019979 in words is "one hundred twenty-two billion, two hundred one million, nineteen thousand, nine hundred seventy-nine".