3220000320000 has 400 divisors, whose sum is σ = 10759845647232. Its totient is φ = 855429120000.

The previous prime is 3220000319983. The next prime is 3220000320013. The reversal of 3220000320000 is 230000223.

It is a tau number, because it is divible by the number of its divisors (400).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 260153812 + ... + 260166188.

Almost surely, 2^{3220000320000} is an apocalyptic number.

3220000320000 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 3220000320000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5379922823616).

3220000320000 is an abundant number, since it is smaller than the sum of its proper divisors (7539845327232).

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

3220000320000 is an equidigital number, since it uses as much as digits as its factorization.

3220000320000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12689 (or 12658 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 12.

Adding to 3220000320000 its reverse (230000223), we get a palindrome (3220230320223).

The spelling of 3220000320000 in words is "three trillion, two hundred twenty billion, three hundred twenty thousand".