222112211223 has 32 divisors (see below), whose sum is σ = 349054959616. Its totient is φ = 122993404128.

The previous prime is 222112211197. The next prime is 222112211227. The reversal of 222112211223 is 322112211222.

It is not a de Polignac number, because 222112211223 - 2⁶ = 222112211159 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

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 222112211223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222112211227) 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, 853711 + ... + 1083072.

It is an arithmetic number, because the mean of its divisors is an integer number (10907967488).

Almost surely, 2^222112211223 is an apocalyptic number.

222112211223 is a deficient number, since it is larger than the sum of its proper divisors (126942748393).

222112211223 is a wasteful number, since it uses less digits than its factorization.

222112211223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1936963.

The product of its digits is 384, while the sum is 21.

Adding to 222112211223 its reverse (322112211222), we get a palindrome (544224422445).

Subtracting 222112211223 from its reverse (322112211222), we obtain a palindrome (99999999999).

The spelling of 222112211223 in words is "two hundred twenty-two billion, one hundred twelve million, two hundred eleven thousand, two hundred twenty-three".