3220303312 has 120 divisors (see below), whose sum is σ = 6924943680. Its totient is φ = 1446336000.

The previous prime is 3220303309. The next prime is 3220303321. The reversal of 3220303312 is 2133030223.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a self number, because there is not a number n which added to its sum of digits gives 3220303312.

It is a congruent number.

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, 21326437 + ... + 21326587.

It is an arithmetic number, because the mean of its divisors is an integer number (57707864).

Almost surely, 2^3220303312 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 3220303312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3462471840).

3220303312 is an abundant number, since it is smaller than the sum of its proper divisors (3704640368).

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

3220303312 is a wasteful number, since it uses less digits than its factorization.

3220303312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 313 (or 276 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 19.

The square root of 3220303312 is about 56747.7163593391. The cubic root of 3220303312 is about 1476.7226162770.

Adding to 3220303312 its reverse (2133030223), we get a palindrome (5353333535).

The spelling of 3220303312 in words is "three billion, two hundred twenty million, three hundred three thousand, three hundred twelve".