122402877984 has 216 divisors, whose sum is σ = 380044779660. Its totient is φ = 37319740416.

The previous prime is 122402877973. The next prime is 122402877997. The reversal of 122402877984 is 489778204221.

122402877984 is a `hidden beast` number, since 12 + 2 + 402 + 87 + 79 + 84 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 109145658384 + 13257219600 = 330372^2 + 115140^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 122402877984.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 2994774 + ... + 3035370.

Almost surely, 2^122402877984 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 122402877984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (190022389830).

122402877984 is an abundant number, since it is smaller than the sum of its proper divisors (257641901676).

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

122402877984 is a wasteful number, since it uses less digits than its factorization.

122402877984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40680 (or 40650 counting only the distinct ones).

The product of its (nonzero) digits is 3612672, while the sum is 54.

The spelling of 122402877984 in words is "one hundred twenty-two billion, four hundred two million, eight hundred seventy-seven thousand, nine hundred eighty-four".