22113221223 has 16 divisors (see below), whose sum is σ = 32576000256. Its totient is φ = 13271702400.

The previous prime is 22113221213. The next prime is 22113221239. The reversal of 22113221223 is 32212231122.

It is not a de Polignac number, because 22113221223 - 2⁹ = 22113220711 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22113221223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22113221213) 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, 9424753 + ... + 9427098.

It is an arithmetic number, because the mean of its divisors is an integer number (2036000016).

Almost surely, 2^22113221223 is an apocalyptic number.

22113221223 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

22113221223 is a deficient number, since it is larger than the sum of its proper divisors (10462779033).

22113221223 is a wasteful number, since it uses less digits than its factorization.

22113221223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18851894.

The product of its digits is 576, while the sum is 21.

Adding to 22113221223 its reverse (32212231122), we get a palindrome (54325452345).

The spelling of 22113221223 in words is "twenty-two billion, one hundred thirteen million, two hundred twenty-one thousand, two hundred twenty-three".