2101100044200 has 96 divisors (see below), whose sum is σ = 6519505120800. Its totient is φ = 559769045760.

The previous prime is 2101100044157. The next prime is 2101100044217. The reversal of 2101100044200 is 24400011012.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 2101100044200.

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, 996502 + ... + 2279301.

It is an arithmetic number, because the mean of its divisors is an integer number (67911511675).

Almost surely, 2^{2101100044200} is an apocalyptic number.

2101100044200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2101100044200 is an abundant number, since it is smaller than the sum of its proper divisors (4418405076600).

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

2101100044200 is a wasteful number, since it uses less digits than its factorization.

2101100044200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3276891 (or 3276882 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 2101100044200 its reverse (24400011012), we get a palindrome (2125500055212).

The spelling of 2101100044200 in words is "two trillion, one hundred one billion, one hundred million, forty-four thousand, two hundred".