222223123 has 4 divisors (see below), whose sum is σ = 222365088. Its totient is φ = 222081160.

The previous prime is 222223109. The next prime is 222223151. The reversal of 222223123 is 321322222.

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 222223123 - 2⁵ = 222223091 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 222223123.

It is not an unprimeable number, because it can be changed into a prime (222223193) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68608 + ... + 71773.

It is an arithmetic number, because the mean of its divisors is an integer number (55591272).

Almost surely, 2^222223123 is an apocalyptic number.

222223123 is a deficient number, since it is larger than the sum of its proper divisors (141965).

222223123 is a wasteful number, since it uses less digits than its factorization.

222223123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141964.

The product of its digits is 576, while the sum is 19.

The square root of 222223123 is about 14907.1500629731. The cubic root of 222223123 is about 605.7076826872.

Adding to 222223123 its reverse (321322222), we get a palindrome (543545345).

Subtracting 222223123 from its reverse (321322222), we obtain a palindrome (99099099).

The spelling of 222223123 in words is "two hundred twenty-two million, two hundred twenty-three thousand, one hundred twenty-three".