12222211131211 has 2 divisors, whose sum is σ = 12222211131212. Its totient is φ = 12222211131210.

The previous prime is 12222211131209. The next prime is 12222211131281. The reversal of 12222211131211 is 11213111222221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12222211131211 - 2¹ = 12222211131209 is a prime.

Together with 12222211131209, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (12222211131281) 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, 6111105565605 + 6111105565606.

It is an arithmetic number, because the mean of its divisors is an integer number (6111105565606).

Almost surely, 2^{12222211131211} is an apocalyptic number.

12222211131211 is a deficient number, since it is larger than the sum of its proper divisors (1).

12222211131211 is an equidigital number, since it uses as much as digits as its factorization.

12222211131211 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 192, while the sum is 22.

Adding to 12222211131211 its reverse (11213111222221), we get a palindrome (23435322353432).

The spelling of 12222211131211 in words is "twelve trillion, two hundred twenty-two billion, two hundred eleven million, one hundred thirty-one thousand, two hundred eleven".