2100221011 has 32 divisors (see below), whose sum is σ = 2547836928. Its totient is φ = 1692472320.

The previous prime is 2100220999. The next prime is 2100221017. The reversal of 2100221011 is 1101220012.

It is not a de Polignac number, because 2100221011 - 2⁵ = 2100220979 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2100221017) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2826306 + ... + 2827048.

It is an arithmetic number, because the mean of its divisors is an integer number (79619904).

Almost surely, 2^2100221011 is an apocalyptic number.

2100221011 is a deficient number, since it is larger than the sum of its proper divisors (447615917).

2100221011 is a wasteful number, since it uses less digits than its factorization.

2100221011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1051.

The product of its (nonzero) digits is 8, while the sum is 10.

The square root of 2100221011 is about 45828.1683138220. The cubic root of 2100221011 is about 1280.6240875516.

Adding to 2100221011 its reverse (1101220012), we get a palindrome (3201441023).

Subtracting from 2100221011 its reverse (1101220012), we obtain a palindrome (999000999).

The spelling of 2100221011 in words is "two billion, one hundred million, two hundred twenty-one thousand, eleven".