122491710882 has 18 divisors (see below), whose sum is σ = 265401924177. Its totient is φ = 40830075336.

The previous prime is 122491710881. The next prime is 122491710883. The reversal of 122491710882 is 288017194221.

122491710882 is a `hidden beast` number, since 12 + 2 + 491 + 71 + 0 + 8 + 82 = 666.

It is an interprime number because it is at equal distance from previous prime (122491710881) and next prime (122491710883).

It can be written as a sum of positive squares in 2 ways, for example, as 79671272121 + 42820438761 = 282261^2 + 206931^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=247479.

It is not an unprimeable number, because it can be changed into a prime (122491710881) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1443628 + ... + 1526120.

Almost surely, 2^122491710882 is an apocalyptic number.

122491710882 is an abundant number, since it is smaller than the sum of its proper divisors (142910213295).

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

122491710882 is an frugal number, since it uses more digits than its factorization.

122491710882 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164994 (or 82498 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 45.

The spelling of 122491710882 in words is "one hundred twenty-two billion, four hundred ninety-one million, seven hundred ten thousand, eight hundred eighty-two".