33042033221 has 8 divisors (see below), whose sum is σ = 34995744000. Its totient is φ = 31089440448.

The previous prime is 33042033181. The next prime is 33042033223. The reversal of 33042033221 is 12233024033.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-33042033221 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33042033223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 218261 + ... + 337226.

It is an arithmetic number, because the mean of its divisors is an integer number (4374468000).

Almost surely, 2^33042033221 is an apocalyptic number.

It is an amenable number.

33042033221 is a deficient number, since it is larger than the sum of its proper divisors (1953710779).

33042033221 is a wasteful number, since it uses less digits than its factorization.

33042033221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 559003.

The product of its (nonzero) digits is 2592, while the sum is 23.

Adding to 33042033221 its reverse (12233024033), we get a palindrome (45275057254).

The spelling of 33042033221 in words is "thirty-three billion, forty-two million, thirty-three thousand, two hundred twenty-one".