3221312313233 has 6 divisors (see below), whose sum is σ = 3747240854226. Its totient is φ = 2761124839872.

The previous prime is 3221312313223. The next prime is 3221312313253. The reversal of 3221312313233 is 3323132131223.

It can be written as a sum of positive squares in only one way, i.e., 2159068768129 + 1062243545104 = 1469377^2 + 1030652^2 .

It is not a de Polignac number, because 3221312313233 - 2³⁰ = 3220238571409 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3221312313196 and 3221312313205.

It is not an unprimeable number, because it can be changed into a prime (3221312313203) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 32870533760 + ... + 32870533857.

It is an arithmetic number, because the mean of its divisors is an integer number (624540142371).

Almost surely, 2^{3221312313233} is an apocalyptic number.

It is an amenable number.

3221312313233 is a deficient number, since it is larger than the sum of its proper divisors (525928540993).

3221312313233 is an equidigital number, since it uses as much as digits as its factorization.

3221312313233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65741067631 (or 65741067624 counting only the distinct ones).

The product of its digits is 11664, while the sum is 29.

Adding to 3221312313233 its reverse (3323132131223), we get a palindrome (6544444444456).

The spelling of 3221312313233 in words is "three trillion, two hundred twenty-one billion, three hundred twelve million, three hundred thirteen thousand, two hundred thirty-three".