211222012200217 has 2 divisors, whose sum is σ = 211222012200218. Its totient is φ = 211222012200216.

The previous prime is 211222012200151. The next prime is 211222012200253. The reversal of 211222012200217 is 712002210222112.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 157944041921241 + 53277970278976 = 12567579^2 + 7299176^2 .

It is a cyclic number.

It is not a de Polignac number, because 211222012200217 - 2³⁹ = 210672256386329 is a prime.

It is a super-2 number, since 2×211222012200217² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 211222012200191 and 211222012200200.

It is not a weakly prime, because it can be changed into another prime (211222012200917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105611006100108 + 105611006100109.

It is an arithmetic number, because the mean of its divisors is an integer number (105611006100109).

Almost surely, 2^{211222012200217} is an apocalyptic number.

It is an amenable number.

211222012200217 is a deficient number, since it is larger than the sum of its proper divisors (1).

211222012200217 is an equidigital number, since it uses as much as digits as its factorization.

211222012200217 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 896, while the sum is 25.

Adding to 211222012200217 its reverse (712002210222112), we get a palindrome (923224222422329).

The spelling of 211222012200217 in words is "two hundred eleven trillion, two hundred twenty-two billion, twelve million, two hundred thousand, two hundred seventeen".