33223230021 has 8 divisors (see below), whose sum is σ = 44298491680. Its totient is φ = 22148394192.

The previous prime is 33223230013. The next prime is 33223230037. The reversal of 33223230021 is 12003232233.

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

It is not a de Polignac number, because 33223230021 - 2³ = 33223230013 is a prime.

It is a super-2 number, since 2×33223230021² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 33223230021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33223230071) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 209871 + ... + 332403.

It is an arithmetic number, because the mean of its divisors is an integer number (5537311460).

Almost surely, 2^33223230021 is an apocalyptic number.

It is an amenable number.

33223230021 is a deficient number, since it is larger than the sum of its proper divisors (11075261659).

33223230021 is a wasteful number, since it uses less digits than its factorization.

33223230021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212915.

The product of its (nonzero) digits is 1296, while the sum is 21.

Adding to 33223230021 its reverse (12003232233), we get a palindrome (45226462254).

The spelling of 33223230021 in words is "thirty-three billion, two hundred twenty-three million, two hundred thirty thousand, twenty-one".