122389858816 has 20 divisors (see below), whose sum is σ = 244540675962. Its totient is φ = 61194929152.

The previous prime is 122389858813. The next prime is 122389858847. The reversal of 122389858816 is 618858983221.

It can be written as a sum of positive squares in only one way, i.e., 87758137600 + 34631721216 = 296240^2 + 186096^2 .

It is not an unprimeable number, because it can be changed into a prime (122389858813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 119520835 + ... + 119521858.

Almost surely, 2^122389858816 is an apocalyptic number.

122389858816 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

122389858816 is a deficient number, since it is larger than the sum of its proper divisors (122150817146).

122389858816 is an frugal number, since it uses more digits than its factorization.

122389858816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239042711 (or 239042695 counting only the distinct ones).

The product of its digits is 13271040, while the sum is 61.

The spelling of 122389858816 in words is "one hundred twenty-two billion, three hundred eighty-nine million, eight hundred fifty-eight thousand, eight hundred sixteen".