122209016939 has 2 divisors, whose sum is σ = 122209016940. Its totient is φ = 122209016938.

The previous prime is 122209016933. The next prime is 122209017001. The reversal of 122209016939 is 939610902221.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122209016939 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 122209016939.

It is not a weakly prime, because it can be changed into another prime (122209016933) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61104508469 + 61104508470.

It is an arithmetic number, because the mean of its divisors is an integer number (61104508470).

Almost surely, 2^122209016939 is an apocalyptic number.

122209016939 is a deficient number, since it is larger than the sum of its proper divisors (1).

122209016939 is an equidigital number, since it uses as much as digits as its factorization.

122209016939 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 104976, while the sum is 44.

The spelling of 122209016939 in words is "one hundred twenty-two billion, two hundred nine million, sixteen thousand, nine hundred thirty-nine".