320221222 has 8 divisors (see below), whose sum is σ = 480452472. Its totient is φ = 160070400.

The previous prime is 320221217. The next prime is 320221303. The reversal of 320221222 is 222122023.

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

It is a junction number, because it is equal to n+sod(n) for n = 320221196 and 320221205.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 8904 + ... + 26827.

It is an arithmetic number, because the mean of its divisors is an integer number (60056559).

Almost surely, 2^320221222 is an apocalyptic number.

320221222 is a deficient number, since it is larger than the sum of its proper divisors (160231250).

320221222 is a wasteful number, since it uses less digits than its factorization.

320221222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40214.

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 320221222 is about 17894.7260945788. The cubic root of 320221222 is about 684.1479608210.

Adding to 320221222 its reverse (222122023), we get a palindrome (542343245).

The spelling of 320221222 in words is "three hundred twenty million, two hundred twenty-one thousand, two hundred twenty-two".