122394521407 has 2 divisors, whose sum is σ = 122394521408. Its totient is φ = 122394521406.

The previous prime is 122394521399. The next prime is 122394521437. The reversal of 122394521407 is 704125493221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 122394521407 - 2³ = 122394521399 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 122394521407.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122394521437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61197260703 + 61197260704.

It is an arithmetic number, because the mean of its divisors is an integer number (61197260704).

Almost surely, 2^122394521407 is an apocalyptic number.

122394521407 is a deficient number, since it is larger than the sum of its proper divisors (1).

122394521407 is an equidigital number, since it uses as much as digits as its factorization.

122394521407 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 120960, while the sum is 40.

The spelling of 122394521407 in words is "one hundred twenty-two billion, three hundred ninety-four million, five hundred twenty-one thousand, four hundred seven".