320022222000 has 320 divisors, whose sum is σ = 1112707115520. Its totient is φ = 78662016000.

The previous prime is 320022221993. The next prime is 320022222001. The reversal of 320022222000 is 222220023.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is not an unprimeable number, because it can be changed into a prime (320022222001) by changing a digit.

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 in 63 ways as a sum of consecutive naturals, for example, 63255471 + ... + 63260529.

It is an arithmetic number, because the mean of its divisors is an integer number (3477209736).

Almost surely, 2^320022222000 is an apocalyptic number.

320022222000 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 320022222000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (556353557760).

320022222000 is an abundant number, since it is smaller than the sum of its proper divisors (792684893520).

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

320022222000 is a wasteful number, since it uses less digits than its factorization.

320022222000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5909 (or 5893 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 15.

Adding to 320022222000 its reverse (222220023), we get a palindrome (320244442023).

The spelling of 320022222000 in words is "three hundred twenty billion, twenty-two million, two hundred twenty-two thousand".