321473222 has 12 divisors (see below), whose sum is σ = 560938140. Its totient is φ = 137774196.

The previous prime is 321473221. The next prime is 321473263. The reversal of 321473222 is 222374123.

It is a happy number.

It is a super-2 number, since 2×321473222² = 206690064926122568, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 321473191 and 321473200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321473221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1640072 + ... + 1640267.

It is an arithmetic number, because the mean of its divisors is an integer number (46744845).

Almost surely, 2^321473222 is an apocalyptic number.

321473222 is a deficient number, since it is larger than the sum of its proper divisors (239464918).

321473222 is a wasteful number, since it uses less digits than its factorization.

321473222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3280355 (or 3280348 counting only the distinct ones).

The product of its digits is 4032, while the sum is 26.

The square root of 321473222 is about 17929.6743417163. The cubic root of 321473222 is about 685.0384278795.

Subtracting from 321473222 its reverse (222374123), we obtain a palindrome (99099099).

The spelling of 321473222 in words is "three hundred twenty-one million, four hundred seventy-three thousand, two hundred twenty-two".