122113854818 has 18 divisors (see below), whose sum is σ = 185043538539. Its totient is φ = 60438937812.

The previous prime is 122113854803. The next prime is 122113854857. The reversal of 122113854818 is 818458311221.

It can be written as a sum of positive squares in only one way, i.e., 61056927409 + 61056927409 = 247097^2 + 247097^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=247097.

It is a Duffinian 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 8 ways as a sum of consecutive naturals, for example, 50900783 + ... + 50903181.

Almost surely, 2^122113854818 is an apocalyptic number.

122113854818 is a deficient number, since it is larger than the sum of its proper divisors (62929683721).

122113854818 is an frugal number, since it uses more digits than its factorization.

122113854818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5006 (or 2504 counting only the distinct ones).

The product of its digits is 122880, while the sum is 44.

The spelling of 122113854818 in words is "one hundred twenty-two billion, one hundred thirteen million, eight hundred fifty-four thousand, eight hundred eighteen".