3312244421221 has 2 divisors, whose sum is σ = 3312244421222. Its totient is φ = 3312244421220.

The previous prime is 3312244421219. The next prime is 3312244421251. The reversal of 3312244421221 is 1221244422133.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1949220861025 + 1363023560196 = 1396145^2 + 1167486^2 .

It is a cyclic number.

It is not a de Polignac number, because 3312244421221 - 2¹ = 3312244421219 is a prime.

Together with 3312244421219, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3312244421251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1656122210610 + 1656122210611.

It is an arithmetic number, because the mean of its divisors is an integer number (1656122210611).

Almost surely, 2^{3312244421221} is an apocalyptic number.

It is an amenable number.

3312244421221 is a deficient number, since it is larger than the sum of its proper divisors (1).

3312244421221 is an equidigital number, since it uses as much as digits as its factorization.

3312244421221 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18432, while the sum is 31.

Adding to 3312244421221 its reverse (1221244422133), we get a palindrome (4533488843354).

The spelling of 3312244421221 in words is "three trillion, three hundred twelve billion, two hundred forty-four million, four hundred twenty-one thousand, two hundred twenty-one".