222442523 has 2 divisors, whose sum is σ = 222442524. Its totient is φ = 222442522.

The previous prime is 222442511. The next prime is 222442541. The reversal of 222442523 is 325244222.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 222442523 - 2⁶ = 222442459 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 222442492 and 222442501.

It is not a weakly prime, because it can be changed into another prime (222442543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111221261 + 111221262.

It is an arithmetic number, because the mean of its divisors is an integer number (111221262).

Almost surely, 2^222442523 is an apocalyptic number.

222442523 is a deficient number, since it is larger than the sum of its proper divisors (1).

222442523 is an equidigital number, since it uses as much as digits as its factorization.

222442523 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7680, while the sum is 26.

The square root of 222442523 is about 14914.5071323192. The cubic root of 222442523 is about 605.9069547118.

Adding to 222442523 its reverse (325244222), we get a palindrome (547686745).

The spelling of 222442523 in words is "two hundred twenty-two million, four hundred forty-two thousand, five hundred twenty-three".