33233220221 has 8 divisors (see below), whose sum is σ = 33822751200. Its totient is φ = 32644564560.

The previous prime is 33233220211. The next prime is 33233220233. The reversal of 33233220221 is 12202233233.

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

It is a cyclic number.

It is not a de Polignac number, because 33233220221 - 2⁶ = 33233220157 is a prime.

It is a super-2 number, since 2×33233220221² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33233220211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 141986 + ... + 294323.

It is an arithmetic number, because the mean of its divisors is an integer number (4227843900).

Almost surely, 2^33233220221 is an apocalyptic number.

It is an amenable number.

33233220221 is a deficient number, since it is larger than the sum of its proper divisors (589530979).

33233220221 is a wasteful number, since it uses less digits than its factorization.

33233220221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 437659.

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

Adding to 33233220221 its reverse (12202233233), we get a palindrome (45435453454).

The spelling of 33233220221 in words is "thirty-three billion, two hundred thirty-three million, two hundred twenty thousand, two hundred twenty-one".