33421033213 has 2 divisors, whose sum is σ = 33421033214. Its totient is φ = 33421033212.

The previous prime is 33421033189. The next prime is 33421033241. The reversal of 33421033213 is 31233012433.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22512901849 + 10908131364 = 150043^2 + 104442^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-33421033213 is a prime.

It is a super-2 number, since 2×33421033213² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (33421033013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16710516606 + 16710516607.

It is an arithmetic number, because the mean of its divisors is an integer number (16710516607).

Almost surely, 2^33421033213 is an apocalyptic number.

It is an amenable number.

33421033213 is a deficient number, since it is larger than the sum of its proper divisors (1).

33421033213 is an equidigital number, since it uses as much as digits as its factorization.

33421033213 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3888, while the sum is 25.

Adding to 33421033213 its reverse (31233012433), we get a palindrome (64654045646).

The spelling of 33421033213 in words is "thirty-three billion, four hundred twenty-one million, thirty-three thousand, two hundred thirteen".