2101002211100 has 36 divisors (see below), whose sum is σ = 4909880554824. Its totient is φ = 775754662080.

The previous prime is 2101002211097. The next prime is 2101002211141. The reversal of 2101002211100 is 11122001012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 808076474 + ... + 808079073.

Almost surely, 2^{2101002211100} is an apocalyptic number.

2101002211100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2101002211100 is an abundant number, since it is smaller than the sum of its proper divisors (2808878343724).

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

2101002211100 is a wasteful number, since it uses less digits than its factorization.

2101002211100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1616155574 (or 1616155567 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 2101002211100 its reverse (11122001012), we get a palindrome (2112124212112).

The spelling of 2101002211100 in words is "two trillion, one hundred one billion, two million, two hundred eleven thousand, one hundred".