122209999939 has 2 divisors, whose sum is σ = 122209999940. Its totient is φ = 122209999938.

The previous prime is 122209999931. The next prime is 122209999949. The reversal of 122209999939 is 939999902221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 122209999939 - 2³ = 122209999931 is a prime.

It is not a weakly prime, because it can be changed into another prime (122209999931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61104999969 + 61104999970.

It is an arithmetic number, because the mean of its divisors is an integer number (61104999970).

Almost surely, 2^122209999939 is an apocalyptic number.

122209999939 is a deficient number, since it is larger than the sum of its proper divisors (1).

122209999939 is an equidigital number, since it uses as much as digits as its factorization.

122209999939 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12754584, while the sum is 64.

The spelling of 122209999939 in words is "one hundred twenty-two billion, two hundred nine million, nine hundred ninety-nine thousand, nine hundred thirty-nine".