3221331560 has 32 divisors (see below), whose sum is σ = 7370848800. Its totient is φ = 1266692160.

The previous prime is 3221331523. The next prime is 3221331577. The reversal of 3221331560 is 651331223.

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 7 ways as a sum of consecutive naturals, for example, 680126 + ... + 684845.

It is an arithmetic number, because the mean of its divisors is an integer number (230339025).

Almost surely, 2^3221331560 is an apocalyptic number.

It is an amenable number.

3221331560 is an abundant number, since it is smaller than the sum of its proper divisors (4149517240).

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

3221331560 is a wasteful number, since it uses less digits than its factorization.

3221331560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1365041 (or 1365037 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 26.

The square root of 3221331560 is about 56756.7754545658. The cubic root of 3221331560 is about 1476.8797728495.

Adding to 3221331560 its reverse (651331223), we get a palindrome (3872662783).

The spelling of 3221331560 in words is "three billion, two hundred twenty-one million, three hundred thirty-one thousand, five hundred sixty".