121596880002 has 64 divisors (see below), whose sum is σ = 267147955200. Its totient is φ = 36670480704.

The previous prime is 121596879977. The next prime is 121596880003. The reversal of 121596880002 is 200088695121.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (121596880003) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 981513 + ... + 1098435.

It is an arithmetic number, because the mean of its divisors is an integer number (4174186800).

Almost surely, 2^121596880002 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 121596880002, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (133573977600).

121596880002 is an abundant number, since it is smaller than the sum of its proper divisors (145551075198).

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

121596880002 is a wasteful number, since it uses less digits than its factorization.

121596880002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117207.

The product of its (nonzero) digits is 69120, while the sum is 42.

The spelling of 121596880002 in words is "one hundred twenty-one billion, five hundred ninety-six million, eight hundred eighty thousand, two".