33221010233 has 16 divisors (see below), whose sum is σ = 34862864400. Its totient is φ = 31615395840.

The previous prime is 33221010211. The next prime is 33221010239. The reversal of 33221010233 is 33201012233.

It can be written as a sum of positive squares in 8 ways, for example, as 4569354409 + 28651655824 = 67597^2 + 169268^2 .

It is a cyclic number.

It is not a de Polignac number, because 33221010233 - 2⁶ = 33221010169 is a prime.

It is a super-2 number, since 2×33221010233² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (33221010239) 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 in 15 ways as a sum of consecutive naturals, for example, 565133 + ... + 621141.

It is an arithmetic number, because the mean of its divisors is an integer number (2178929025).

Almost surely, 2^33221010233 is an apocalyptic number.

It is an amenable number.

33221010233 is a deficient number, since it is larger than the sum of its proper divisors (1641854167).

33221010233 is a wasteful number, since it uses less digits than its factorization.

33221010233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56332.

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 33221010233 its reverse (33201012233), we get a palindrome (66422022466).

The spelling of 33221010233 in words is "thirty-three billion, two hundred twenty-one million, ten thousand, two hundred thirty-three".