12122222021227 has 2 divisors, whose sum is σ = 12122222021228. Its totient is φ = 12122222021226.

The previous prime is 12122222021201. The next prime is 12122222021281. The reversal of 12122222021227 is 72212022222121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12122222021227 - 2¹¹ = 12122222019179 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12122222021195 and 12122222021204.

It is not a weakly prime, because it can be changed into another prime (12122222022227) 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, 6061111010613 + 6061111010614.

It is an arithmetic number, because the mean of its divisors is an integer number (6061111010614).

Almost surely, 2^{12122222021227} is an apocalyptic number.

12122222021227 is a deficient number, since it is larger than the sum of its proper divisors (1).

12122222021227 is an equidigital number, since it uses as much as digits as its factorization.

12122222021227 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3584, while the sum is 28.

Adding to 12122222021227 its reverse (72212022222121), we get a palindrome (84334244243348).

The spelling of 12122222021227 in words is "twelve trillion, one hundred twenty-two billion, two hundred twenty-two million, twenty-one thousand, two hundred twenty-seven".