2112112100 has 36 divisors (see below), whose sum is σ = 5238039744. Its totient is φ = 724152480.

The previous prime is 2112112097. The next prime is 2112112117. The reversal of 2112112100 is 12112112.

It is a super-2 number, since 2×2112112100² = 8922035045932820000, which contains 22 as substring.

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 11 ways as a sum of consecutive naturals, for example, 1507952 + ... + 1509351.

It is an arithmetic number, because the mean of its divisors is an integer number (145501104).

Almost surely, 2^2112112100 is an apocalyptic number.

2112112100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2112112100 is an abundant number, since it is smaller than the sum of its proper divisors (3125927644).

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

2112112100 is a wasteful number, since it uses less digits than its factorization.

2112112100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3017324 (or 3017317 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

The square root of 2112112100 is about 45957.7207876979. The cubic root of 2112112100 is about 1283.0364313820.

Adding to 2112112100 its reverse (12112112), we get a palindrome (2124224212).

The spelling of 2112112100 in words is "two billion, one hundred twelve million, one hundred twelve thousand, one hundred".