33211023494021 has 2 divisors, whose sum is σ = 33211023494022. Its totient is φ = 33211023494020.

The previous prime is 33211023494009. The next prime is 33211023494071. The reversal of 33211023494021 is 12049432011233.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 33096721350625 + 114302143396 = 5752975^2 + 338086^2 .

It is a cyclic number.

It is not a de Polignac number, because 33211023494021 - 2³⁸ = 32936145587077 is a prime.

It is a super-2 number, since 2×33211023494021² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (33211023494071) 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, 16605511747010 + 16605511747011.

It is an arithmetic number, because the mean of its divisors is an integer number (16605511747011).

Almost surely, 2^{33211023494021} is an apocalyptic number.

It is an amenable number.

33211023494021 is a deficient number, since it is larger than the sum of its proper divisors (1).

33211023494021 is an equidigital number, since it uses as much as digits as its factorization.

33211023494021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31104, while the sum is 35.

The spelling of 33211023494021 in words is "thirty-three trillion, two hundred eleven billion, twenty-three million, four hundred ninety-four thousand, twenty-one".