3220303020320 has 96 divisors (see below), whose sum is σ = 7684386615360. Its totient is φ = 1275185894400.

The previous prime is 3220303020307. The next prime is 3220303020329. The reversal of 3220303020320 is 230203030223.

It is a super-2 number, since 2×3220303020320² (a number of 26 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 3220303020292 and 3220303020301.

It is not an unprimeable number, because it can be changed into a prime (3220303020329) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 205854419 + ... + 205870061.

It is an arithmetic number, because the mean of its divisors is an integer number (80045693910).

Almost surely, 2^{3220303020320} 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 3220303020320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3842193307680).

3220303020320 is an abundant number, since it is smaller than the sum of its proper divisors (4464083595040).

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

3220303020320 is a wasteful number, since it uses less digits than its factorization.

3220303020320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28498 (or 28490 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 20.

Adding to 3220303020320 its reverse (230203030223), we get a palindrome (3450506050543).

It can be divided in two parts, 32203030203 and 20, that added together give a palindrome (32203030223).

The spelling of 3220303020320 in words is "three trillion, two hundred twenty billion, three hundred three million, twenty thousand, three hundred twenty".