3333336667021 has 2 divisors, whose sum is σ = 3333336667022. Its totient is φ = 3333336667020.

The previous prime is 3333336667019. The next prime is 3333336667043. The reversal of 3333336667021 is 1207666333333.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3045408912100 + 287927754921 = 1745110^2 + 536589^2 .

It is an emirp because it is prime and its reverse (1207666333333) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3333336667021 - 2¹ = 3333336667019 is a prime.

It is a super-2 number, since 2×3333336667021² (a number of 26 digits) contains 22 as substring.

Together with 3333336667019, 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 (3333336667121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1666668333510 + 1666668333511.

It is an arithmetic number, because the mean of its divisors is an integer number (1666668333511).

Almost surely, 2^{3333336667021} is an apocalyptic number.

It is an amenable number.

3333336667021 is a deficient number, since it is larger than the sum of its proper divisors (1).

3333336667021 is an equidigital number, since it uses as much as digits as its factorization.

3333336667021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2204496, while the sum is 46.

The spelling of 3333336667021 in words is "three trillion, three hundred thirty-three billion, three hundred thirty-six million, six hundred sixty-seven thousand, twenty-one".