8989121112 has 64 divisors (see below), whose sum is σ = 23227706880. Its totient is φ = 2897258112.

The previous prime is 8989121111. The next prime is 8989121117. The reversal of 8989121112 is 2111219898.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8989121111) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45618 + ... + 141630.

It is an arithmetic number, because the mean of its divisors is an integer number (362932920).

Almost surely, 2^8989121112 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 8989121112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11613853440).

8989121112 is an abundant number, since it is smaller than the sum of its proper divisors (14238585768).

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

8989121112 is a wasteful number, since it uses less digits than its factorization.

8989121112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96152 (or 96148 counting only the distinct ones).

The product of its digits is 20736, while the sum is 42.

The square root of 8989121112 is about 94810.9756937455. The cubic root of 8989121112 is about 2079.2453740598.

The spelling of 8989121112 in words is "eight billion, nine hundred eighty-nine million, one hundred twenty-one thousand, one hundred twelve".