12121220982 has 32 divisors (see below), whose sum is σ = 26496916992. Its totient is φ = 3673939104.

The previous prime is 12121220963. The next prime is 12121221011. The reversal of 12121220982 is 28902212121.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1154478 + ... + 1164929.

It is an arithmetic number, because the mean of its divisors is an integer number (828028656).

Almost surely, 2^12121220982 is an apocalyptic number.

12121220982 is an abundant number, since it is smaller than the sum of its proper divisors (14375696010).

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

12121220982 is a wasteful number, since it uses less digits than its factorization.

12121220982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2319492.

The product of its (nonzero) digits is 2304, while the sum is 30.

The spelling of 12121220982 in words is "twelve billion, one hundred twenty-one million, two hundred twenty thousand, nine hundred eighty-two".