122398135426099 has 24 divisors (see below), whose sum is σ = 136278234881376. Its totient is φ = 109277554896000.

The previous prime is 122398135426093. The next prime is 122398135426163. The reversal of 122398135426099 is 990624531893221.

It is not a de Polignac number, because 122398135426099 - 2¹⁷ = 122398135295027 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 122398135426099.

It is not an unprimeable number, because it can be changed into a prime (122398135426093) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19779922 + ... + 25219864.

It is an arithmetic number, because the mean of its divisors is an integer number (5678259786724).

Almost surely, 2^{122398135426099} is an apocalyptic number.

122398135426099 is a deficient number, since it is larger than the sum of its proper divisors (13880099455277).

122398135426099 is a wasteful number, since it uses less digits than its factorization.

122398135426099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5441819 (or 5441788 counting only the distinct ones).

The product of its (nonzero) digits is 50388480, while the sum is 64.

The spelling of 122398135426099 in words is "one hundred twenty-two trillion, three hundred ninety-eight billion, one hundred thirty-five million, four hundred twenty-six thousand, ninety-nine".