2100221220200 has 48 divisors (see below), whose sum is σ = 4886380287360. Its totient is φ = 839509400000.

The previous prime is 2100221220199. The next prime is 2100221220329. The reversal of 2100221220200 is 20221220012.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3328376 + ... + 3908775.

It is an arithmetic number, because the mean of its divisors is an integer number (101799589320).

Almost surely, 2^{2100221220200} is an apocalyptic number.

2100221220200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2100221220200 is an abundant number, since it is smaller than the sum of its proper divisors (2786159067160).

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

2100221220200 is a wasteful number, since it uses less digits than its factorization.

2100221220200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7238618 (or 7238609 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 2100221220200 its reverse (20221220012), we get a palindrome (2120442440212).

The spelling of 2100221220200 in words is "two trillion, one hundred billion, two hundred twenty-one million, two hundred twenty thousand, two hundred".