320022100000 has 144 divisors (see below), whose sum is σ = 792260917056. Its totient is φ = 127235680000.

The previous prime is 320022099973. The next prime is 320022100033. The reversal of 320022100000 is 1220023.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a self number, because there is not a number n which added to its sum of digits gives 320022100000.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16690419 + ... + 16709581.

It is an arithmetic number, because the mean of its divisors is an integer number (5501811924).

Almost surely, 2^320022100000 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 320022100000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (396130458528).

320022100000 is an abundant number, since it is smaller than the sum of its proper divisors (472238817056).

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

320022100000 is an equidigital number, since it uses as much as digits as its factorization.

320022100000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19365 (or 19337 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 10.

Adding to 320022100000 its reverse (1220023), we get a palindrome (320023320023).

The spelling of 320022100000 in words is "three hundred twenty billion, twenty-two million, one hundred thousand".