122394521399 has 2 divisors, whose sum is σ = 122394521400. Its totient is φ = 122394521398.

The previous prime is 122394521387. The next prime is 122394521407. The reversal of 122394521399 is 993125493221.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 122394521399 - 2¹² = 122394517303 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122394521299) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61197260699 + 61197260700.

It is an arithmetic number, because the mean of its divisors is an integer number (61197260700).

Almost surely, 2^122394521399 is an apocalyptic number.

122394521399 is a deficient number, since it is larger than the sum of its proper divisors (1).

122394521399 is an equidigital number, since it uses as much as digits as its factorization.

122394521399 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1049760, while the sum is 50.

The spelling of 122394521399 in words is "one hundred twenty-two billion, three hundred ninety-four million, five hundred twenty-one thousand, three hundred ninety-nine".