3322131212221 has 2 divisors, whose sum is σ = 3322131212222. Its totient is φ = 3322131212220.

The previous prime is 3322131212189. The next prime is 3322131212237. The reversal of 3322131212221 is 1222121312233.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2009983872121 + 1312147340100 = 1417739^2 + 1145490^2 .

It is a cyclic number.

It is not a de Polignac number, because 3322131212221 - 2⁵ = 3322131212189 is a prime.

It is a super-2 number, since 2×3322131212221² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3322131212321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1661065606110 + 1661065606111.

It is an arithmetic number, because the mean of its divisors is an integer number (1661065606111).

Almost surely, 2^{3322131212221} is an apocalyptic number.

It is an amenable number.

3322131212221 is a deficient number, since it is larger than the sum of its proper divisors (1).

3322131212221 is an equidigital number, since it uses as much as digits as its factorization.

3322131212221 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1728, while the sum is 25.

Adding to 3322131212221 its reverse (1222121312233), we get a palindrome (4544252524454).

The spelling of 3322131212221 in words is "three trillion, three hundred twenty-two billion, one hundred thirty-one million, two hundred twelve thousand, two hundred twenty-one".