2100222200 has 48 divisors (see below), whose sum is σ = 4955929080. Its totient is φ = 827544960.

The previous prime is 2100222151. The next prime is 2100222203. The reversal of 2100222200 is 22220012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2100222203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 64967 + ... + 91766.

Almost surely, 2^2100222200 is an apocalyptic number.

2100222200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2100222200 is an abundant number, since it is smaller than the sum of its proper divisors (2855706880).

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

2100222200 is a wasteful number, since it uses less digits than its factorization.

2100222200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156816 (or 156807 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 11.

The square root of 2100222200 is about 45828.1812861911. The cubic root of 2100222200 is about 1280.6243292185.

Adding to 2100222200 its reverse (22220012), we get a palindrome (2122442212).

The spelling of 2100222200 in words is "two billion, one hundred million, two hundred twenty-two thousand, two hundred".