321222420304 has 10 divisors (see below), whose sum is σ = 622368439370. Its totient is φ = 160611210144.

The previous prime is 321222420293. The next prime is 321222420371. The reversal of 321222420304 is 403024222123.

It can be written as a sum of positive squares in only one way, i.e., 308633580304 + 12588840000 = 555548^2 + 112200^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10038200619 + ... + 10038200650.

It is an arithmetic number, because the mean of its divisors is an integer number (62236843937).

Almost surely, 2^321222420304 is an apocalyptic number.

It is an amenable number.

321222420304 is a deficient number, since it is larger than the sum of its proper divisors (301146019066).

321222420304 is a wasteful number, since it uses less digits than its factorization.

321222420304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20076401277 (or 20076401271 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 25.

Adding to 321222420304 its reverse (403024222123), we get a palindrome (724246642427).

The spelling of 321222420304 in words is "three hundred twenty-one billion, two hundred twenty-two million, four hundred twenty thousand, three hundred four".