3204311304220 has 192 divisors, whose sum is σ = 7971573012480. Its totient is φ = 1071496968192.

The previous prime is 3204311304203. The next prime is 3204311304247. The reversal of 3204311304220 is 224031134023.

It is a super-2 number, since 2×3204311304220² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 9823264 + ... + 10144216.

It is an arithmetic number, because the mean of its divisors is an integer number (41518609440).

Almost surely, 2^{3204311304220} 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 3204311304220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3985786506240).

3204311304220 is an abundant number, since it is smaller than the sum of its proper divisors (4767261708260).

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

3204311304220 is a wasteful number, since it uses less digits than its factorization.

3204311304220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 321084 (or 321082 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 3204311304220 its reverse (224031134023), we get a palindrome (3428342438243).

The spelling of 3204311304220 in words is "three trillion, two hundred four billion, three hundred eleven million, three hundred four thousand, two hundred twenty".