3221203313 has 8 divisors (see below), whose sum is σ = 3370684968. Its totient is φ = 3075007104.

The previous prime is 3221203309. The next prime is 3221203339. The reversal of 3221203313 is 3133021223.

It can be written as a sum of positive squares in 4 ways, for example, as 2294122609 + 927080704 = 47897^2 + 30448^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3221203313 - 2² = 3221203309 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3221203303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 819356 + ... + 823277.

It is an arithmetic number, because the mean of its divisors is an integer number (421335621).

Almost surely, 2^3221203313 is an apocalyptic number.

It is an amenable number.

3221203313 is a deficient number, since it is larger than the sum of its proper divisors (149481655).

3221203313 is a wasteful number, since it uses less digits than its factorization.

3221203313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1642723.

The product of its (nonzero) digits is 648, while the sum is 20.

The square root of 3221203313 is about 56755.6456486930. The cubic root of 3221203313 is about 1476.8601735098.

Adding to 3221203313 its reverse (3133021223), we get a palindrome (6354224536).

The spelling of 3221203313 in words is "three billion, two hundred twenty-one million, two hundred three thousand, three hundred thirteen".