2100112220 has 12 divisors (see below), whose sum is σ = 4410235704. Its totient is φ = 840044880.

The previous prime is 2100112213. The next prime is 2100112241. The reversal of 2100112220 is 222110012.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52502786 + ... + 52502825.

It is an arithmetic number, because the mean of its divisors is an integer number (367519642).

Almost surely, 2^2100112220 is an apocalyptic number.

2100112220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2100112220 is an abundant number, since it is smaller than the sum of its proper divisors (2310123484).

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

2100112220 is a wasteful number, since it uses less digits than its factorization.

2100112220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105005620 (or 105005618 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 2100112220 is about 45826.9813537833. The cubic root of 2100112220 is about 1280.6019751516.

Adding to 2100112220 its reverse (222110012), we get a palindrome (2322222232).

The spelling of 2100112220 in words is "two billion, one hundred million, one hundred twelve thousand, two hundred twenty".