222343221 has 8 divisors (see below), whose sum is σ = 313896384. Its totient is φ = 139509440.

The previous prime is 222343213. The next prime is 222343223. The reversal of 222343221 is 122343222.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 222343221 - 2³ = 222343213 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222343223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2179785 + ... + 2179886.

It is an arithmetic number, because the mean of its divisors is an integer number (39237048).

Almost surely, 2^222343221 is an apocalyptic number.

It is an amenable number.

222343221 is a deficient number, since it is larger than the sum of its proper divisors (91553163).

222343221 is a wasteful number, since it uses less digits than its factorization.

222343221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4359691.

The product of its digits is 1152, while the sum is 21.

The square root of 222343221 is about 14911.1777200864. The cubic root of 222343221 is about 605.8167790159.

Adding to 222343221 its reverse (122343222), we get a palindrome (344686443).

Subtracting from 222343221 its reverse (122343222), we obtain a palindrome (99999999).

The spelling of 222343221 in words is "two hundred twenty-two million, three hundred forty-three thousand, two hundred twenty-one".