222213123 has 12 divisors (see below), whose sum is σ = 350154168. Its totient is φ = 134674560.

The previous prime is 222213119. The next prime is 222213149. The reversal of 222213123 is 321312222.

222213123 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 222213123 - 2² = 222213119 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 222213096 and 222213105.

It is not an unprimeable number, because it can be changed into a prime (222213163) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1122190 + ... + 1122387.

It is an arithmetic number, because the mean of its divisors is an integer number (29179514).

Almost surely, 2^222213123 is an apocalyptic number.

222213123 is a deficient number, since it is larger than the sum of its proper divisors (127941045).

222213123 is a wasteful number, since it uses less digits than its factorization.

222213123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2244594 (or 2244591 counting only the distinct ones).

The product of its digits is 288, while the sum is 18.

The square root of 222213123 is about 14906.8146496829. The cubic root of 222213123 is about 605.6985969725.

Adding to 222213123 its reverse (321312222), we get a palindrome (543525345).

Subtracting 222213123 from its reverse (321312222), we obtain a palindrome (99099099).

The spelling of 222213123 in words is "two hundred twenty-two million, two hundred thirteen thousand, one hundred twenty-three".