212021033317 has 2 divisors, whose sum is σ = 212021033318. Its totient is φ = 212021033316.

The previous prime is 212021033299. The next prime is 212021033321. The reversal of 212021033317 is 713330120212.

It is a happy number.

212021033317 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., 106141730436 + 105879302881 = 325794^2 + 325391^2 .

It is a cyclic number.

It is not a de Polignac number, because 212021033317 - 2²³ = 212012644709 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 212021033291 and 212021033300.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212021033417) 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, 106010516658 + 106010516659.

It is an arithmetic number, because the mean of its divisors is an integer number (106010516659).

Almost surely, 2^212021033317 is an apocalyptic number.

It is an amenable number.

212021033317 is a deficient number, since it is larger than the sum of its proper divisors (1).

212021033317 is an equidigital number, since it uses as much as digits as its factorization.

212021033317 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1512, while the sum is 25.

Adding to 212021033317 its reverse (713330120212), we get a palindrome (925351153529).

The spelling of 212021033317 in words is "two hundred twelve billion, twenty-one million, thirty-three thousand, three hundred seventeen".