122128539523199 has 48 divisors (see below), whose sum is σ = 135428165908224. Its totient is φ = 110048078891520.

The previous prime is 122128539523187. The next prime is 122128539523213. The reversal of 122128539523199 is 991325935821221.

It is a de Polignac number, because none of the positive numbers 2^k-122128539523199 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122128539525199) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 9618686219 + ... + 9618698915.

It is an arithmetic number, because the mean of its divisors is an integer number (2821420123088).

Almost surely, 2^{122128539523199} is an apocalyptic number.

122128539523199 is a deficient number, since it is larger than the sum of its proper divisors (13299626385025).

122128539523199 is a wasteful number, since it uses less digits than its factorization.

122128539523199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14256 (or 14245 counting only the distinct ones).

The product of its digits is 20995200, while the sum is 62.

The spelling of 122128539523199 in words is "one hundred twenty-two trillion, one hundred twenty-eight billion, five hundred thirty-nine million, five hundred twenty-three thousand, one hundred ninety-nine".