2100221112212 has 12 divisors (see below), whose sum is σ = 3677589107220. Its totient is φ = 1049481367296.

The previous prime is 2100221112191. The next prime is 2100221112229. The reversal of 2100221112212 is 2122111220012.

It can be written as a sum of positive squares in 2 ways, for example, as 1369681671556 + 730539440656 = 1170334^2 + 854716^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 157289693 + ... + 157303044.

It is an arithmetic number, because the mean of its divisors is an integer number (306465758935).

Almost surely, 2^{2100221112212} is an apocalyptic number.

It is an amenable number.

2100221112212 is a deficient number, since it is larger than the sum of its proper divisors (1577367995008).

2100221112212 is a wasteful number, since it uses less digits than its factorization.

2100221112212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 314594410 (or 314594408 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 2100221112212 its reverse (2122111220012), we get a palindrome (4222332332224).

The spelling of 2100221112212 in words is "two trillion, one hundred billion, two hundred twenty-one million, one hundred twelve thousand, two hundred twelve".