22221122223 has 16 divisors (see below), whose sum is σ = 29716044896. Its totient is φ = 14770183680.

The previous prime is 22221122213. The next prime is 22221122243. The reversal of 22221122223 is 32222112222.

It is not a de Polignac number, because 22221122223 - 2⁵ = 22221122191 is a prime.

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 22221122223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22221122213) 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, 2694915 + ... + 2703147.

It is an arithmetic number, because the mean of its divisors is an integer number (1857252806).

Almost surely, 2^22221122223 is an apocalyptic number.

22221122223 is a deficient number, since it is larger than the sum of its proper divisors (7494922673).

22221122223 is a wasteful number, since it uses less digits than its factorization.

22221122223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10794.

The product of its digits is 768, while the sum is 21.

Adding to 22221122223 its reverse (32222112222), we get a palindrome (54443234445).

It can be divided in two parts, 2222112222 and 3, that multiplied together give a palindrome (6666336666).

The spelling of 22221122223 in words is "twenty-two billion, two hundred twenty-one million, one hundred twenty-two thousand, two hundred twenty-three".