320001222 has 8 divisors (see below), whose sum is σ = 640002456. Its totient is φ = 106667072.

The previous prime is 320001221. The next prime is 320001223. The reversal of 320001222 is 222100023.

It is an interprime number because it is at equal distance from previous prime (320001221) and next prime (320001223).

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

320001222 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 320001198 and 320001207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320001221) 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 3 ways as a sum of consecutive naturals, for example, 26666763 + ... + 26666774.

It is an arithmetic number, because the mean of its divisors is an integer number (80000307).

Almost surely, 2^320001222 is an apocalyptic number.

320001222 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

320001222 is a wasteful number, since it uses less digits than its factorization.

320001222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53333542.

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 320001222 is about 17888.5779759041. The cubic root of 320001222 is about 683.9912493323.

Adding to 320001222 its reverse (222100023), we get a palindrome (542101245).

The spelling of 320001222 in words is "three hundred twenty million, one thousand, two hundred twenty-two".