122557207740 has 96 divisors (see below), whose sum is σ = 379095413760. Its totient is φ = 29334739200.

The previous prime is 122557207739. The next prime is 122557207757. The reversal of 122557207740 is 47702755221.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 122557207692 and 122557207701.

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 31 ways as a sum of consecutive naturals, for example, 1123131 + ... + 1227410.

It is an arithmetic number, because the mean of its divisors is an integer number (3948910560).

Almost surely, 2^122557207740 is an apocalyptic number.

122557207740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122557207740 is an abundant number, since it is smaller than the sum of its proper divisors (256538206020).

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

122557207740 is a wasteful number, since it uses less digits than its factorization.

122557207740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2350643 (or 2350641 counting only the distinct ones).

The product of its (nonzero) digits is 274400, while the sum is 42.

The spelling of 122557207740 in words is "one hundred twenty-two billion, five hundred fifty-seven million, two hundred seven thousand, seven hundred forty".