33320212033 has 4 divisors (see below), whose sum is σ = 34768916928. Its totient is φ = 31871507140.

The previous prime is 33320211997. The next prime is 33320212061. The reversal of 33320212033 is 33021202333.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 33021202333 = 7 ⋅4717314619.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-33320212033 is a prime.

It is a super-2 number, since 2×33320212033² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 33320211995 and 33320212013.

It is not an unprimeable number, because it can be changed into a prime (33320212073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 724352413 + ... + 724352458.

It is an arithmetic number, because the mean of its divisors is an integer number (8692229232).

Almost surely, 2^33320212033 is an apocalyptic number.

It is an amenable number.

33320212033 is a deficient number, since it is larger than the sum of its proper divisors (1448704895).

33320212033 is a wasteful number, since it uses less digits than its factorization.

33320212033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1448704894.

The product of its (nonzero) digits is 1944, while the sum is 22.

Adding to 33320212033 its reverse (33021202333), we get a palindrome (66341414366).

The spelling of 33320212033 in words is "thirty-three billion, three hundred twenty million, two hundred twelve thousand, thirty-three".