2100011212200 has 96 divisors (see below), whose sum is σ = 7101856121760. Its totient is φ = 509093625600.

The previous prime is 2100011212181. The next prime is 2100011212223. The reversal of 2100011212200 is 22121100012.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 159085159 + ... + 159098358.

It is an arithmetic number, because the mean of its divisors is an integer number (73977667935).

Almost surely, 2^{2100011212200} is an apocalyptic number.

2100011212200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2100011212200 is an abundant number, since it is smaller than the sum of its proper divisors (5001844909560).

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

2100011212200 is a wasteful number, since it uses less digits than its factorization.

2100011212200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 318183547 (or 318183538 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 2100011212200 its reverse (22121100012), we get a palindrome (2122132312212).

The spelling of 2100011212200 in words is "two trillion, one hundred billion, eleven million, two hundred twelve thousand, two hundred".