122131312255400 has 96 divisors (see below), whose sum is σ = 325557151371840. Its totient is φ = 41739811176960.

The previous prime is 122131312255373. The next prime is 122131312255417. The reversal of 122131312255400 is 4552213131221.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 138917474 + ... + 139793873.

It is an arithmetic number, because the mean of its divisors is an integer number (3391220326790).

Almost surely, 2^{122131312255400} is an apocalyptic number.

122131312255400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122131312255400 is an abundant number, since it is smaller than the sum of its proper divisors (203425839116440).

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

122131312255400 is a wasteful number, since it uses less digits than its factorization.

122131312255400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 278711683 (or 278711674 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 32.

Adding to 122131312255400 its reverse (4552213131221), we get a palindrome (126683525386621).

The spelling of 122131312255400 in words is "one hundred twenty-two trillion, one hundred thirty-one billion, three hundred twelve million, two hundred fifty-five thousand, four hundred".