2113210120 has 32 divisors (see below), whose sum is σ = 5433969600. Its totient is φ = 724529088.

The previous prime is 2113210091. The next prime is 2113210171. The reversal of 2113210120 is 210123112.

It is a super-2 number, since 2×2113210120² = 8931314022540828800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2113210120.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3773310 + ... + 3773869.

It is an arithmetic number, because the mean of its divisors is an integer number (169811550).

Almost surely, 2^2113210120 is an apocalyptic number.

2113210120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2113210120 is an abundant number, since it is smaller than the sum of its proper divisors (3320759480).

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

2113210120 is a wasteful number, since it uses less digits than its factorization.

2113210120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7547197 (or 7547193 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 2113210120 is about 45969.6652152264. The cubic root of 2113210120 is about 1283.2587294950.

Adding to 2113210120 its reverse (210123112), we get a palindrome (2323333232).

The spelling of 2113210120 in words is "two billion, one hundred thirteen million, two hundred ten thousand, one hundred twenty".