2120112200 has 24 divisors (see below), whose sum is σ = 4929261330. Its totient is φ = 848044800.

The previous prime is 2120112199. The next prime is 2120112217. The reversal of 2120112200 is 22110212.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 1342929316 + 777182884 = 36646^2 + 27878^2 .

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, 5300081 + ... + 5300480.

Almost surely, 2^2120112200 is an apocalyptic number.

2120112200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2120112200 is an abundant number, since it is smaller than the sum of its proper divisors (2809149130).

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

2120112200 is a wasteful number, since it uses less digits than its factorization.

2120112200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10600577 (or 10600568 counting only the distinct ones).

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

The square root of 2120112200 is about 46044.6761309057. The cubic root of 2120112200 is about 1284.6543201542.

Adding to 2120112200 its reverse (22110212), we get a palindrome (2142222412).

The spelling of 2120112200 in words is "two billion, one hundred twenty million, one hundred twelve thousand, two hundred".