321222226 has 16 divisors (see below), whose sum is σ = 519619968. Its totient is φ = 148050000.

The previous prime is 321222199. The next prime is 321222269. The reversal of 321222226 is 622222123.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 321222197 and 321222206.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11301 + ... + 27751.

It is an arithmetic number, because the mean of its divisors is an integer number (32476248).

Almost surely, 2^321222226 is an apocalyptic number.

321222226 is a deficient number, since it is larger than the sum of its proper divisors (198397742).

321222226 is a wasteful number, since it uses less digits than its factorization.

321222226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17217.

The product of its digits is 1152, while the sum is 22.

The square root of 321222226 is about 17922.6735170844. The cubic root of 321222226 is about 684.8600961017.

Adding to 321222226 its reverse (622222123), we get a palindrome (943444349).

The spelling of 321222226 in words is "three hundred twenty-one million, two hundred twenty-two thousand, two hundred twenty-six".