2110221102221 has 16 divisors (see below), whose sum is σ = 2147531620608. Its totient is φ = 2072999822400.

The previous prime is 2110221102193. The next prime is 2110221102289. The reversal of 2110221102221 is 1222011220112.

It is a cyclic number.

It is not a de Polignac number, because 2110221102221 - 2³⁴ = 2093041233037 is a prime.

It is a super-2 number, since 2×2110221102221² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2110221102221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2110221102421) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 238789415 + ... + 238798251.

It is an arithmetic number, because the mean of its divisors is an integer number (134220726288).

Almost surely, 2^{2110221102221} is an apocalyptic number.

It is an amenable number.

2110221102221 is a deficient number, since it is larger than the sum of its proper divisors (37310518387).

2110221102221 is a wasteful number, since it uses less digits than its factorization.

2110221102221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13412.

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

Adding to 2110221102221 its reverse (1222011220112), we get a palindrome (3332232322333).

The spelling of 2110221102221 in words is "two trillion, one hundred ten billion, two hundred twenty-one million, one hundred two thousand, two hundred twenty-one".