2110222221 has 32 divisors (see below), whose sum is σ = 2941747200. Its totient is φ = 1344361536.

The previous prime is 2110222217. The next prime is 2110222237. The reversal of 2110222221 is 1222220112.

It is not a de Polignac number, because 2110222221 - 2² = 2110222217 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2110222221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2110222201) 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, 1507680 + ... + 1509078.

It is an arithmetic number, because the mean of its divisors is an integer number (91929600).

Almost surely, 2^2110222221 is an apocalyptic number.

It is an amenable number.

2110222221 is a deficient number, since it is larger than the sum of its proper divisors (831524979).

2110222221 is a wasteful number, since it uses less digits than its factorization.

2110222221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1673.

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 2110222221 is about 45937.1551252360. The cubic root of 2110222221 is about 1282.6536380658.

Adding to 2110222221 its reverse (1222220112), we get a palindrome (3332442333).

The spelling of 2110222221 in words is "two billion, one hundred ten million, two hundred twenty-two thousand, two hundred twenty-one".