122397821311 has 2 divisors, whose sum is σ = 122397821312. Its totient is φ = 122397821310.

The previous prime is 122397821303. The next prime is 122397821333. The reversal of 122397821311 is 113128793221.

It is a weak prime.

It is an emirp because it is prime and its reverse (113128793221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 122397821311 - 2³ = 122397821303 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122397821911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61198910655 + 61198910656.

It is an arithmetic number, because the mean of its divisors is an integer number (61198910656).

Almost surely, 2^122397821311 is an apocalyptic number.

122397821311 is a deficient number, since it is larger than the sum of its proper divisors (1).

122397821311 is an equidigital number, since it uses as much as digits as its factorization.

122397821311 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 36288, while the sum is 40.

The spelling of 122397821311 in words is "one hundred twenty-two billion, three hundred ninety-seven million, eight hundred twenty-one thousand, three hundred eleven".