12033211021 has 8 divisors (see below), whose sum is σ = 12967969280. Its totient is φ = 11099756592.

The previous prime is 12033210977. The next prime is 12033211037. The reversal of 12033211021 is 12011233021.

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 12033211021 - 2⁹ = 12033210509 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12033210986 and 12033211004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12033211051) 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, 306741 + ... + 343738.

It is an arithmetic number, because the mean of its divisors is an integer number (1620996160).

Almost surely, 2^12033211021 is an apocalyptic number.

It is an amenable number.

12033211021 is a deficient number, since it is larger than the sum of its proper divisors (934758259).

12033211021 is a wasteful number, since it uses less digits than its factorization.

12033211021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 651915.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 12033211021 its reverse (12011233021), we get a palindrome (24044444042).

The spelling of 12033211021 in words is "twelve billion, thirty-three million, two hundred eleven thousand, twenty-one".