122021111982 has 96 divisors (see below), whose sum is σ = 306691241472. Its totient is φ = 31680792000.

The previous prime is 122021111969. The next prime is 122021112023. The reversal of 122021111982 is 289111120221.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 22464807 + ... + 22470237.

It is an arithmetic number, because the mean of its divisors is an integer number (3194700432).

Almost surely, 2^122021111982 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 122021111982, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (153345620736).

122021111982 is an abundant number, since it is smaller than the sum of its proper divisors (184670129490).

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

122021111982 is a wasteful number, since it uses less digits than its factorization.

122021111982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9886 (or 9875 counting only the distinct ones).

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

The spelling of 122021111982 in words is "one hundred twenty-two billion, twenty-one million, one hundred eleven thousand, nine hundred eighty-two".