2100200012200 has 48 divisors (see below), whose sum is σ = 4885823029500. Its totient is φ = 839588305920.

The previous prime is 2100200012191. The next prime is 2100200012203. The reversal of 2100200012200 is 22100020012.

It can be written as a sum of positive squares in 6 ways, for example, as 496638735076 + 1603561277124 = 704726^2 + 1266318^2 .

It is a Harshad number since it is a multiple of its sum of digits (10).

It is not an unprimeable number, because it can be changed into a prime (2100200012203) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2730465 + ... + 3414064.

Almost surely, 2^{2100200012200} is an apocalyptic number.

2100200012200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2100200012200 is an abundant number, since it is smaller than the sum of its proper divisors (2785623017300).

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

2100200012200 is a wasteful number, since it uses less digits than its factorization.

2100200012200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6146254 (or 6146245 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 10.

Adding to 2100200012200 its reverse (22100020012), we get a palindrome (2122300032212).

The spelling of 2100200012200 in words is "two trillion, one hundred billion, two hundred million, twelve thousand, two hundred".