12000221433 has 24 divisors (see below), whose sum is σ = 17824168128. Its totient is φ = 7774291872.

The previous prime is 12000221393. The next prime is 12000221437. The reversal of 12000221433 is 33412200021.

12000221433 is a `hidden beast` number, since 12 + 0 + 0 + 0 + 221 + 433 = 666.

It is not a de Polignac number, because 12000221433 - 2¹² = 12000217337 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12000221437) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 252166 + ... + 295952.

It is an arithmetic number, because the mean of its divisors is an integer number (742673672).

Almost surely, 2^12000221433 is an apocalyptic number.

It is an amenable number.

12000221433 is a deficient number, since it is larger than the sum of its proper divisors (5823946695).

12000221433 is a wasteful number, since it uses less digits than its factorization.

12000221433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44653 (or 44650 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 12000221433 its reverse (33412200021), we get a palindrome (45412421454).

The spelling of 12000221433 in words is "twelve billion, two hundred twenty-one thousand, four hundred thirty-three".