320222221000 has 64 divisors (see below), whose sum is σ = 817440024960. Its totient is φ = 116444440000.

The previous prime is 320222220973. The next prime is 320222221001. The reversal of 320222221000 is 122222023.

It is not an unprimeable number, because it can be changed into a prime (320222221001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14544556 + ... + 14566555.

It is an arithmetic number, because the mean of its divisors is an integer number (12772500390).

Almost surely, 2^320222221000 is an apocalyptic number.

It is an amenable number.

320222221000 is an abundant number, since it is smaller than the sum of its proper divisors (497217803960).

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

320222221000 is a wasteful number, since it uses less digits than its factorization.

320222221000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29111143 (or 29111129 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

Adding to 320222221000 its reverse (122222023), we get a palindrome (320344443023).

The spelling of 320222221000 in words is "three hundred twenty billion, two hundred twenty-two million, two hundred twenty-one thousand".