3221313500 has 48 divisors (see below), whose sum is σ = 7168150080. Its totient is φ = 1264203200.

The previous prime is 3221313451. The next prime is 3221313503. The reversal of 3221313500 is 53131223.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3221313503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34280 + ... + 87279.

It is an arithmetic number, because the mean of its divisors is an integer number (149336460).

Almost surely, 2^3221313500 is an apocalyptic number.

It is an amenable number.

3221313500 is an abundant number, since it is smaller than the sum of its proper divisors (3946836580).

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

3221313500 is a wasteful number, since it uses less digits than its factorization.

3221313500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121631 (or 121619 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 20.

The square root of 3221313500 is about 56756.6163543952. The cubic root of 3221313500 is about 1476.8770128626.

Adding to 3221313500 its reverse (53131223), we get a palindrome (3274444723).

The spelling of 3221313500 in words is "three billion, two hundred twenty-one million, three hundred thirteen thousand, five hundred".