212022020317 has 2 divisors, whose sum is σ = 212022020318. Its totient is φ = 212022020316.

The previous prime is 212022020297. The next prime is 212022020383. The reversal of 212022020317 is 713020220212.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 156508063321 + 55513956996 = 395611^2 + 235614^2 .

It is a cyclic number.

It is not a de Polignac number, because 212022020317 - 2¹¹ = 212022018269 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212022027317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106011010158 + 106011010159.

It is an arithmetic number, because the mean of its divisors is an integer number (106011010159).

Almost surely, 2^212022020317 is an apocalyptic number.

It is an amenable number.

212022020317 is a deficient number, since it is larger than the sum of its proper divisors (1).

212022020317 is an equidigital number, since it uses as much as digits as its factorization.

212022020317 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 672, while the sum is 22.

Adding to 212022020317 its reverse (713020220212), we get a palindrome (925042240529).

The spelling of 212022020317 in words is "two hundred twelve billion, twenty-two million, twenty thousand, three hundred seventeen".