222442123 has 2 divisors, whose sum is σ = 222442124. Its totient is φ = 222442122.

The previous prime is 222442091. The next prime is 222442141. The reversal of 222442123 is 321244222.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 222442123 - 2⁵ = 222442091 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 222442094 and 222442103.

It is not a weakly prime, because it can be changed into another prime (222442183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111221061 + 111221062.

It is an arithmetic number, because the mean of its divisors is an integer number (111221062).

Almost surely, 2^222442123 is an apocalyptic number.

222442123 is a deficient number, since it is larger than the sum of its proper divisors (1).

222442123 is an equidigital number, since it uses as much as digits as its factorization.

222442123 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1536, while the sum is 22.

The square root of 222442123 is about 14914.4937225506. The cubic root of 222442123 is about 605.9065915274.

Adding to 222442123 its reverse (321244222), we get a palindrome (543686345).

The spelling of 222442123 in words is "two hundred twenty-two million, four hundred forty-two thousand, one hundred twenty-three".