989022212122112 has 160 divisors (see below), whose sum is σ = 2261316849792000. Its totient is φ = 423322300735488.

The previous prime is 989022212122093. The next prime is 989022212122199. The reversal of 989022212122112 is 211221212220989.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8939935214 + ... + 8940045842.

It is an arithmetic number, because the mean of its divisors is an integer number (14133230311200).

Almost surely, 2^{989022212122112} 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 989022212122112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1130658424896000).

989022212122112 is an abundant number, since it is smaller than the sum of its proper divisors (1272294637669888).

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

989022212122112 is a wasteful number, since it uses less digits than its factorization.

989022212122112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113836 (or 113820 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 44.

The spelling of 989022212122112 in words is "nine hundred eighty-nine trillion, twenty-two billion, two hundred twelve million, one hundred twenty-two thousand, one hundred twelve".