33221043 has 32 divisors (see below), whose sum is σ = 52557120. Its totient is φ = 20666880.

The previous prime is 33221011. The next prime is 33221047. The reversal of 33221043 is 34012233.

It is not a de Polignac number, because 33221043 - 2⁵ = 33221011 is a prime.

It is a super-2 number, since 2×33221043² = 2207275396015698, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (33221047) 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 31 ways as a sum of consecutive naturals, for example, 71833 + ... + 72293.

It is an arithmetic number, because the mean of its divisors is an integer number (1642410).

Almost surely, 2^33221043 is an apocalyptic number.

33221043 is a deficient number, since it is larger than the sum of its proper divisors (19336077).

33221043 is a wasteful number, since it uses less digits than its factorization.

33221043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 644 (or 638 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 33221043 is about 5763.7698600829. The cubic root of 33221043 is about 321.4680045589.

Adding to 33221043 its reverse (34012233), we get a palindrome (67233276).

The spelling of 33221043 in words is "thirty-three million, two hundred twenty-one thousand, forty-three".