33044221 has 4 divisors (see below), whose sum is σ = 37764832. Its totient is φ = 28323612.

The previous prime is 33044203. The next prime is 33044269. The reversal of 33044221 is 12244033.

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.

It is a cyclic number.

It is not a de Polignac number, because 33044221 - 2⁷ = 33044093 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33044201) 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 3 ways as a sum of consecutive naturals, for example, 2360295 + ... + 2360308.

It is an arithmetic number, because the mean of its divisors is an integer number (9441208).

Almost surely, 2^33044221 is an apocalyptic number.

It is an amenable number.

33044221 is a deficient number, since it is larger than the sum of its proper divisors (4720611).

33044221 is an equidigital number, since it uses as much as digits as its factorization.

33044221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4720610.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 33044221 is about 5748.4103019878. The cubic root of 33044221 is about 320.8966421571.

Adding to 33044221 its reverse (12244033), we get a palindrome (45288254).

It can be divided in two parts, 330 and 44221, that added together give a triangular number (44551 = T₂₉₈).

The spelling of 33044221 in words is "thirty-three million, forty-four thousand, two hundred twenty-one".