33221113223321 has 2 divisors, whose sum is σ = 33221113223322. Its totient is φ = 33221113223320.

The previous prime is 33221113223297. The next prime is 33221113223357. The reversal of 33221113223321 is 12332231112233.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 24794075803225 + 8427037420096 = 4979365^2 + 2902936^2 .

It is an emirp because it is prime and its reverse (12332231112233) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 33221113223321 - 2⁴² = 28823066712217 is a prime.

It is a super-2 number, since 2×33221113223321² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (33221113222321) 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 as a sum of consecutive naturals, namely, 16610556611660 + 16610556611661.

It is an arithmetic number, because the mean of its divisors is an integer number (16610556611661).

Almost surely, 2^{33221113223321} is an apocalyptic number.

It is an amenable number.

33221113223321 is a deficient number, since it is larger than the sum of its proper divisors (1).

33221113223321 is an equidigital number, since it uses as much as digits as its factorization.

33221113223321 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7776, while the sum is 29.

Adding to 33221113223321 its reverse (12332231112233), we get a palindrome (45553344335554).

The spelling of 33221113223321 in words is "thirty-three trillion, two hundred twenty-one billion, one hundred thirteen million, two hundred twenty-three thousand, three hundred twenty-one".