2100113212220 has 48 divisors (see below), whose sum is σ = 4478510766240. Its totient is φ = 827081358336.

The previous prime is 2100113212207. The next prime is 2100113212261. The reversal of 2100113212220 is 222123110012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 433262 + ... + 2094741.

It is an arithmetic number, because the mean of its divisors is an integer number (93302307630).

Almost surely, 2^{2100113212220} is an apocalyptic number.

2100113212220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2100113212220 is an abundant number, since it is smaller than the sum of its proper divisors (2378397554020).

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

2100113212220 is a wasteful number, since it uses less digits than its factorization.

2100113212220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2528654 (or 2528652 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 2100113212220 its reverse (222123110012), we get a palindrome (2322236322232).

The spelling of 2100113212220 in words is "two trillion, one hundred billion, one hundred thirteen million, two hundred twelve thousand, two hundred twenty".