222232123 has 4 divisors (see below), whose sum is σ = 222266880. Its totient is φ = 222197368.

The previous prime is 222232117. The next prime is 222232139. The reversal of 222232123 is 321232222.

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 222232123 - 2⁵ = 222232091 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 222232123.

It is not an unprimeable number, because it can be changed into a prime (222232103) 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, 4708 + ... + 21601.

It is an arithmetic number, because the mean of its divisors is an integer number (55566720).

Almost surely, 2^222232123 is an apocalyptic number.

222232123 is a deficient number, since it is larger than the sum of its proper divisors (34757).

222232123 is an equidigital number, since it uses as much as digits as its factorization.

222232123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34756.

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

The square root of 222232123 is about 14907.4519284819. The cubic root of 222232123 is about 605.7158595974.

Adding to 222232123 its reverse (321232222), we get a palindrome (543464345).

Subtracting 222232123 from its reverse (321232222), we obtain a palindrome (99000099).

The spelling of 222232123 in words is "two hundred twenty-two million, two hundred thirty-two thousand, one hundred twenty-three".