2100221101210 has 16 divisors (see below), whose sum is σ = 3819371159016. Its totient is φ = 831427734528.

The previous prime is 2100221101193. The next prime is 2100221101219. The reversal of 2100221101210 is 121011220012.

It can be written as a sum of positive squares in 4 ways, for example, as 982796632321 + 1117424468889 = 991361^2 + 1057083^2 .

It is not an unprimeable number, because it can be changed into a prime (2100221101219) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1082587227 + ... + 1082589166.

Almost surely, 2^{2100221101210} is an apocalyptic number.

2100221101210 is a deficient number, since it is larger than the sum of its proper divisors (1719150057806).

2100221101210 is a wasteful number, since it uses less digits than its factorization.

2100221101210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2165176497.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 2100221101210 its reverse (121011220012), we get a palindrome (2221232321222).

The spelling of 2100221101210 in words is "two trillion, one hundred billion, two hundred twenty-one million, one hundred one thousand, two hundred ten".