3221320120 has 32 divisors (see below), whose sum is σ = 7282339920. Its totient is φ = 1282417920.

The previous prime is 3221320111. The next prime is 3221320127. The reversal of 3221320120 is 210231223.

It is a junction number, because it is equal to n+sod(n) for n = 3221320094 and 3221320103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3221320127) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 182397 + ... + 199276.

Almost surely, 2^3221320120 is an apocalyptic number.

It is an amenable number.

3221320120 is an abundant number, since it is smaller than the sum of its proper divisors (4061019800).

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

3221320120 is a wasteful number, since it uses less digits than its factorization.

3221320120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 381895 (or 381891 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 3221320120 is about 56756.6746735571. The cubic root of 3221320120 is about 1476.8780245533.

Adding to 3221320120 its reverse (210231223), we get a palindrome (3431551343).

The spelling of 3221320120 in words is "three billion, two hundred twenty-one million, three hundred twenty thousand, one hundred twenty".