122959939128 has 64 divisors (see below), whose sum is σ = 332103908640. Its totient is φ = 37712922624.

The previous prime is 122959939093. The next prime is 122959939171. The reversal of 122959939128 is 821939959221.

It is a super-2 number, since 2×122959939128² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 531901 + ... + 727212.

Almost surely, 2^122959939128 is an apocalyptic number.

It is an amenable number.

122959939128 is an abundant number, since it is smaller than the sum of its proper divisors (209143969512).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

122959939128 is a wasteful number, since it uses less digits than its factorization.

122959939128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1259448 (or 1259444 counting only the distinct ones).

The product of its digits is 6298560, while the sum is 60.

The spelling of 122959939128 in words is "one hundred twenty-two billion, nine hundred fifty-nine million, nine hundred thirty-nine thousand, one hundred twenty-eight".