222230321 has 4 divisors (see below), whose sum is σ = 227398512. Its totient is φ = 217062132.

The previous prime is 222230317. The next prime is 222230329. The reversal of 222230321 is 123032222.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 222230321 - 2² = 222230317 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 222230321.

It is not an unprimeable number, because it can be changed into a prime (222230329) 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, 2584031 + ... + 2584116.

It is an arithmetic number, because the mean of its divisors is an integer number (56849628).

Almost surely, 2^222230321 is an apocalyptic number.

It is an amenable number.

222230321 is a deficient number, since it is larger than the sum of its proper divisors (5168191).

222230321 is an equidigital number, since it uses as much as digits as its factorization.

222230321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5168190.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 222230321 is about 14907.3914887884. The cubic root of 222230321 is about 605.7142224159.

Adding to 222230321 its reverse (123032222), we get a palindrome (345262543).

The spelling of 222230321 in words is "two hundred twenty-two million, two hundred thirty thousand, three hundred twenty-one".