2112120200 has 24 divisors (see below), whose sum is σ = 4910679930. Its totient is φ = 844848000.

The previous prime is 2112120191. The next prime is 2112120223. The reversal of 2112120200 is 20212112.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 2012240164 + 99880036 = 44858^2 + 9994^2 .

It is a super-2 number, since 2×2112120200² = 8922103478496080000, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5280101 + ... + 5280500.

Almost surely, 2^2112120200 is an apocalyptic number.

2112120200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2112120200 is an abundant number, since it is smaller than the sum of its proper divisors (2798559730).

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

2112120200 is a wasteful number, since it uses less digits than its factorization.

2112120200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10560617 (or 10560608 counting only the distinct ones).

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

The square root of 2112120200 is about 45957.8089120881. The cubic root of 2112120200 is about 1283.0380715383.

Adding to 2112120200 its reverse (20212112), we get a palindrome (2132332312).

The spelling of 2112120200 in words is "two billion, one hundred twelve million, one hundred twenty thousand, two hundred".