222111223 has 4 divisors (see below), whose sum is σ = 225875880. Its totient is φ = 218346568.

The previous prime is 222111209. The next prime is 222111233. The reversal of 222111223 is 322111222.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 222111223 - 2⁵ = 222111191 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 222111197 and 222111206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222111233) 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, 1882240 + ... + 1882357.

It is an arithmetic number, because the mean of its divisors is an integer number (56468970).

Almost surely, 2^222111223 is an apocalyptic number.

222111223 is a deficient number, since it is larger than the sum of its proper divisors (3764657).

222111223 is an equidigital number, since it uses as much as digits as its factorization.

222111223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3764656.

The product of its digits is 96, while the sum is 16.

The square root of 222111223 is about 14903.3963578776. The cubic root of 222111223 is about 605.6059979952.

Adding to 222111223 its reverse (322111222), we get a palindrome (544222445).

Subtracting 222111223 from its reverse (322111222), we obtain a palindrome (99999999).

The spelling of 222111223 in words is "two hundred twenty-two million, one hundred eleven thousand, two hundred twenty-three".