212021330233 has 2 divisors, whose sum is σ = 212021330234. Its totient is φ = 212021330232.

The previous prime is 212021330207. The next prime is 212021330243. The reversal of 212021330233 is 332033120212.

212021330233 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 173224937209 + 38796393024 = 416203^2 + 196968^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212021330233 is a prime.

It is not a weakly prime, because it can be changed into another prime (212021330243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106010665116 + 106010665117.

It is an arithmetic number, because the mean of its divisors is an integer number (106010665117).

Almost surely, 2^212021330233 is an apocalyptic number.

It is an amenable number.

212021330233 is a deficient number, since it is larger than the sum of its proper divisors (1).

212021330233 is an equidigital number, since it uses as much as digits as its factorization.

212021330233 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 212021330233 its reverse (332033120212), we get a palindrome (544054450445).

The spelling of 212021330233 in words is "two hundred twelve billion, twenty-one million, three hundred thirty thousand, two hundred thirty-three".