111121220982 has 32 divisors (see below), whose sum is σ = 232458750720. Its totient is φ = 35345377760.

The previous prime is 111121220957. The next prime is 111121221007. The reversal of 111121220982 is 289022121111.

It is an interprime number because it is at equal distance from previous prime (111121220957) and next prime (111121221007).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 903069 + ... + 1018712.

It is an arithmetic number, because the mean of its divisors is an integer number (7264335960).

Almost surely, 2^111121220982 is an apocalyptic number.

111121220982 is an abundant number, since it is smaller than the sum of its proper divisors (121337529738).

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

111121220982 is a wasteful number, since it uses less digits than its factorization.

111121220982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1922228.

The product of its (nonzero) digits is 1152, while the sum is 30.

The spelling of 111121220982 in words is "one hundred eleven billion, one hundred twenty-one million, two hundred twenty thousand, nine hundred eighty-two".