122220477913 has 2 divisors, whose sum is σ = 122220477914. Its totient is φ = 122220477912.

The previous prime is 122220477901. The next prime is 122220477959. The reversal of 122220477913 is 319774022221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 97201779984 + 25018697929 = 311772^2 + 158173^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122220477913 is a prime.

It is not a weakly prime, because it can be changed into another prime (122220477983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61110238956 + 61110238957.

It is an arithmetic number, because the mean of its divisors is an integer number (61110238957).

Almost surely, 2^122220477913 is an apocalyptic number.

It is an amenable number.

122220477913 is a deficient number, since it is larger than the sum of its proper divisors (1).

122220477913 is an equidigital number, since it uses as much as digits as its factorization.

122220477913 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 84672, while the sum is 40.

The spelling of 122220477913 in words is "one hundred twenty-two billion, two hundred twenty million, four hundred seventy-seven thousand, nine hundred thirteen".