122136924640 has 24 divisors (see below), whose sum is σ = 288548484840. Its totient is φ = 48854769792.

The previous prime is 122136924619. The next prime is 122136924673. The reversal of 122136924640 is 46429631221.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 122136924593 and 122136924602.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 381677730 + ... + 381678049.

It is an arithmetic number, because the mean of its divisors is an integer number (12022853535).

Almost surely, 2^122136924640 is an apocalyptic number.

122136924640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122136924640 is an abundant number, since it is smaller than the sum of its proper divisors (166411560200).

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

122136924640 is an equidigital number, since it uses as much as digits as its factorization.

122136924640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 763355794 (or 763355786 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 40.

The spelling of 122136924640 in words is "one hundred twenty-two billion, one hundred thirty-six million, nine hundred twenty-four thousand, six hundred forty".