33221021211233 has 4 divisors (see below), whose sum is σ = 33221152716180. Its totient is φ = 33220889706288.

The previous prime is 33221021211197. The next prime is 33221021211247. The reversal of 33221021211233 is 33211212012233.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 32130849254464 + 1090171956769 = 5668408^2 + 1044113^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-33221021211233 is a prime.

It is a super-2 number, since 2×33221021211233² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (33221021211263) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65372810 + ... + 65879027.

It is an arithmetic number, because the mean of its divisors is an integer number (8305288179045).

Almost surely, 2^{33221021211233} is an apocalyptic number.

It is an amenable number.

33221021211233 is a deficient number, since it is larger than the sum of its proper divisors (131504947).

33221021211233 is a wasteful number, since it uses less digits than its factorization.

33221021211233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131504946.

The product of its (nonzero) digits is 2592, while the sum is 26.

Adding to 33221021211233 its reverse (33211212012233), we get a palindrome (66432233223466).

The spelling of 33221021211233 in words is "thirty-three trillion, two hundred twenty-one billion, twenty-one million, two hundred eleven thousand, two hundred thirty-three".