2100002220200 has 72 divisors (see below), whose sum is σ = 4976367397050. Its totient is φ = 824151594240.

The previous prime is 2100002220109. The next prime is 2100002220203. The reversal of 2100002220200 is 20222000012.

It can be written as a sum of positive squares in 9 ways, for example, as 139593398884 + 1960408821316 = 373622^2 + 1400146^2 .

It is not an unprimeable number, because it can be changed into a prime (2100002220203) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1307195 + ... + 2430794.

Almost surely, 2^{2100002220200} is an apocalyptic number.

2100002220200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2100002220200 is an abundant number, since it is smaller than the sum of its proper divisors (2876365176850).

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

2100002220200 is a wasteful number, since it uses less digits than its factorization.

2100002220200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3738111 (or 3738049 counting only the distinct ones).

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

Adding to 2100002220200 its reverse (20222000012), we get a palindrome (2120224220212).

The spelling of 2100002220200 in words is "two trillion, one hundred billion, two million, two hundred twenty thousand, two hundred".