2112020988 has 96 divisors (see below), whose sum is σ = 6218311680. Its totient is φ = 541947840.

The previous prime is 2112020983. The next prime is 2112021001. The reversal of 2112020988 is 8890202112.

It is a super-2 number, since 2×2112020988² = 8921265307504992288, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2112020983) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 62923 + ... + 90461.

It is an arithmetic number, because the mean of its divisors is an integer number (64774080).

Almost surely, 2^2112020988 is an apocalyptic number.

2112020988 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2112020988, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3109155840).

2112020988 is an abundant number, since it is smaller than the sum of its proper divisors (4106290692).

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

2112020988 is a wasteful number, since it uses less digits than its factorization.

2112020988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27647 (or 27645 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 33.

The square root of 2112020988 is about 45956.7295181021. The cubic root of 2112020988 is about 1283.0179819672.

The spelling of 2112020988 in words is "two billion, one hundred twelve million, twenty thousand, nine hundred eighty-eight".