2100002011200 has 252 divisors, whose sum is σ = 7575307998960. Its totient is φ = 551642065920.

The previous prime is 2100002011199. The next prime is 2100002011213. The reversal of 2100002011200 is 21102000012.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 123510 + ... + 2053109.

Almost surely, 2^{2100002011200} is an apocalyptic number.

2100002011200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2100002011200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3787653999480).

2100002011200 is an abundant number, since it is smaller than the sum of its proper divisors (5475305987760).

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

2100002011200 is a wasteful number, since it uses less digits than its factorization.

2100002011200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2176714 (or 2176696 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 2100002011200 its reverse (21102000012), we get a palindrome (2121104011212).

The spelling of 2100002011200 in words is "two trillion, one hundred billion, two million, eleven thousand, two hundred".