2100100010202 has 24 divisors (see below), whose sum is σ = 4579198966836. Its totient is φ = 695574524736.

The previous prime is 2100100010191. The next prime is 2100100010219. The reversal of 2100100010202 is 2020100010012.

It can be written as a sum of positive squares in 2 ways, for example, as 2060255458881 + 39844551321 = 1435359^2 + 199611^2 .

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 11 ways as a sum of consecutive naturals, for example, 371564763 + ... + 371570414.

Almost surely, 2^{2100100010202} is an apocalyptic number.

2100100010202 is an abundant number, since it is smaller than the sum of its proper divisors (2479098956634).

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

2100100010202 is a wasteful number, since it uses less digits than its factorization.

2100100010202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 743135342 (or 743135339 counting only the distinct ones).

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

Adding to 2100100010202 its reverse (2020100010012), we get a palindrome (4120200020214).

The spelling of 2100100010202 in words is "two trillion, one hundred billion, one hundred million, ten thousand, two hundred two".