3213233210221 has 2 divisors, whose sum is σ = 3213233210222. Its totient is φ = 3213233210220.

The previous prime is 3213233210207. The next prime is 3213233210237. The reversal of 3213233210221 is 1220123323123.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2183343132996 + 1029890077225 = 1477614^2 + 1014835^2 .

It is a cyclic number.

It is not a de Polignac number, because 3213233210221 - 2¹³ = 3213233202029 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3213233217221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1606616605110 + 1606616605111.

It is an arithmetic number, because the mean of its divisors is an integer number (1606616605111).

Almost surely, 2^{3213233210221} is an apocalyptic number.

It is an amenable number.

3213233210221 is a deficient number, since it is larger than the sum of its proper divisors (1).

3213233210221 is an equidigital number, since it uses as much as digits as its factorization.

3213233210221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 3213233210221 its reverse (1220123323123), we get a palindrome (4433356533344).

The spelling of 3213233210221 in words is "three trillion, two hundred thirteen billion, two hundred thirty-three million, two hundred ten thousand, two hundred twenty-one".