322220242 has 8 divisors (see below), whose sum is σ = 494570736. Its totient is φ = 157363332.

The previous prime is 322220237. The next prime is 322220243. The reversal of 322220242 is 242022223.

It is a happy number.

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

It is not an unprimeable number, because it can be changed into a prime (322220243) 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, 1873288 + ... + 1873459.

It is an arithmetic number, because the mean of its divisors is an integer number (61821342).

Almost surely, 2^322220242 is an apocalyptic number.

322220242 is a deficient number, since it is larger than the sum of its proper divisors (172350494).

322220242 is a wasteful number, since it uses less digits than its factorization.

322220242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3746792.

The product of its (nonzero) digits is 768, while the sum is 19.

The square root of 322220242 is about 17950.4941993250. The cubic root of 322220242 is about 685.5686343383.

Adding to 322220242 its reverse (242022223), we get a palindrome (564242465).

The spelling of 322220242 in words is "three hundred twenty-two million, two hundred twenty thousand, two hundred forty-two".