212211222011227 has 2 divisors, whose sum is σ = 212211222011228. Its totient is φ = 212211222011226.

The previous prime is 212211222011171. The next prime is 212211222011231. The reversal of 212211222011227 is 722110222112212.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 212211222011227 - 2¹¹ = 212211222009179 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 212211222011195 and 212211222011204.

It is not a weakly prime, because it can be changed into another prime (212211222011237) 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, 106105611005613 + 106105611005614.

It is an arithmetic number, because the mean of its divisors is an integer number (106105611005614).

Almost surely, 2^{212211222011227} is an apocalyptic number.

212211222011227 is a deficient number, since it is larger than the sum of its proper divisors (1).

212211222011227 is an equidigital number, since it uses as much as digits as its factorization.

212211222011227 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1792, while the sum is 28.

Adding to 212211222011227 its reverse (722110222112212), we get a palindrome (934321444123439).

The spelling of 212211222011227 in words is "two hundred twelve trillion, two hundred eleven billion, two hundred twenty-two million, eleven thousand, two hundred twenty-seven".