3321021109993 has 2 divisors, whose sum is σ = 3321021109994. Its totient is φ = 3321021109992.

The previous prime is 3321021109949. The next prime is 3321021110059. The reversal of 3321021109993 is 3999011201233.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2702302001424 + 618719108569 = 1643868^2 + 786587^2 .

It is an emirp because it is prime and its reverse (3999011201233) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3321021109993 - 2⁹ = 3321021109481 is a prime.

It is a super-2 number, since 2×3321021109993² (a number of 26 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (3321021109093) 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, 1660510554996 + 1660510554997.

It is an arithmetic number, because the mean of its divisors is an integer number (1660510554997).

Almost surely, 2^{3321021109993} is an apocalyptic number.

It is an amenable number.

3321021109993 is a deficient number, since it is larger than the sum of its proper divisors (1).

3321021109993 is an equidigital number, since it uses as much as digits as its factorization.

3321021109993 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 78732, while the sum is 43.

The spelling of 3321021109993 in words is "three trillion, three hundred twenty-one billion, twenty-one million, one hundred nine thousand, nine hundred ninety-three".