2110110022221 has 4 divisors (see below), whose sum is σ = 2813480029632. Its totient is φ = 1406740014812.

The previous prime is 2110110022219. The next prime is 2110110022259. The reversal of 2110110022221 is 1222200110112.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2110110022221 - 2¹ = 2110110022219 is a prime.

It is a super-2 number, since 2×2110110022221² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2110110022221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2110110072221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 351685003701 + ... + 351685003706.

It is an arithmetic number, because the mean of its divisors is an integer number (703370007408).

Almost surely, 2^{2110110022221} is an apocalyptic number.

It is an amenable number.

2110110022221 is a deficient number, since it is larger than the sum of its proper divisors (703370007411).

2110110022221 is an equidigital number, since it uses as much as digits as its factorization.

2110110022221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 703370007410.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 2110110022221 its reverse (1222200110112), we get a palindrome (3332310132333).

The spelling of 2110110022221 in words is "two trillion, one hundred ten billion, one hundred ten million, twenty-two thousand, two hundred twenty-one".