321222223220320 has 48 divisors (see below), whose sum is σ = 762036413247648. Its totient is φ = 127955740354560.

The previous prime is 321222223220263. The next prime is 321222223220333. The reversal of 321222223220320 is 23022322222123.

It is a congruent number.

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, 4165187364 + ... + 4165264483.

It is an arithmetic number, because the mean of its divisors is an integer number (15875758609326).

Almost surely, 2^{321222223220320} is an apocalyptic number.

It is an amenable number.

321222223220320 is an abundant number, since it is smaller than the sum of its proper divisors (440814190027328).

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

321222223220320 is a wasteful number, since it uses less digits than its factorization.

321222223220320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8330452103 (or 8330452095 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 28.

Adding to 321222223220320 its reverse (23022322222123), we get a palindrome (344244545442443).

The spelling of 321222223220320 in words is "three hundred twenty-one trillion, two hundred twenty-two billion, two hundred twenty-three million, two hundred twenty thousand, three hundred twenty".