2112081100 has 18 divisors (see below), whose sum is σ = 4583216204. Its totient is φ = 844832400.

The previous prime is 2112081077. The next prime is 2112081121. The reversal of 2112081100 is 11802112.

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 5 ways as a sum of consecutive naturals, for example, 10560306 + ... + 10560505.

Almost surely, 2^2112081100 is an apocalyptic number.

2112081100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2112081100 is an abundant number, since it is smaller than the sum of its proper divisors (2471135104).

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

2112081100 is a wasteful number, since it uses less digits than its factorization.

2112081100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21120825 (or 21120818 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

The square root of 2112081100 is about 45957.3835199525. The cubic root of 2112081100 is about 1283.0301542019.

Adding to 2112081100 its reverse (11802112), we get a palindrome (2123883212).

The spelling of 2112081100 in words is "two billion, one hundred twelve million, eighty-one thousand, one hundred".