12033002021 has 2 divisors, whose sum is σ = 12033002022. Its totient is φ = 12033002020.

The previous prime is 12033002017. The next prime is 12033002063. The reversal of 12033002021 is 12020033021.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6660844996 + 5372157025 = 81614^2 + 73295^2 .

It is a cyclic number.

It is not a de Polignac number, because 12033002021 - 2² = 12033002017 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12033001987 and 12033002005.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12033002011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6016501010 + 6016501011.

It is an arithmetic number, because the mean of its divisors is an integer number (6016501011).

Almost surely, 2^12033002021 is an apocalyptic number.

It is an amenable number.

12033002021 is a deficient number, since it is larger than the sum of its proper divisors (1).

12033002021 is an equidigital number, since it uses as much as digits as its factorization.

12033002021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 12033002021 its reverse (12020033021), we get a palindrome (24053035042).

The spelling of 12033002021 in words is "twelve billion, thirty-three million, two thousand, twenty-one".