3222220320 has 216 divisors, whose sum is σ = 12086975628. Its totient is φ = 781102080.

The previous prime is 3222220319. The next prime is 3222220333. The reversal of 3222220320 is 230222223.

3222220320 is a `hidden beast` number, since 322 + 2 + 2 + 20 + 320 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 3176900496 + 45319824 = 56364^2 + 6732^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 3222220293 and 3222220302.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 164994 + ... + 183486.

Almost surely, 2^3222220320 is an apocalyptic number.

3222220320 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 3222220320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6043487814).

3222220320 is an abundant number, since it is smaller than the sum of its proper divisors (8864755308).

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

3222220320 is a wasteful number, since it uses less digits than its factorization.

3222220320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18536 (or 18514 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 18.

The square root of 3222220320 is about 56764.6044644019. The cubic root of 3222220320 is about 1477.0155832483.

Adding to 3222220320 its reverse (230222223), we get a palindrome (3452442543).

It can be divided in two parts, 32222203 and 20, that added together give a palindrome (32222223).

The spelling of 3222220320 in words is "three billion, two hundred twenty-two million, two hundred twenty thousand, three hundred twenty".