12102222111211 has 2 divisors, whose sum is σ = 12102222111212. Its totient is φ = 12102222111210.

The previous prime is 12102222111191. The next prime is 12102222111227. The reversal of 12102222111211 is 11211122220121.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12102222111211 - 2⁵ = 12102222111179 is a prime.

It is not a weakly prime, because it can be changed into another prime (12102222111241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6051111055605 + 6051111055606.

It is an arithmetic number, because the mean of its divisors is an integer number (6051111055606).

Almost surely, 2^{12102222111211} is an apocalyptic number.

12102222111211 is a deficient number, since it is larger than the sum of its proper divisors (1).

12102222111211 is an equidigital number, since it uses as much as digits as its factorization.

12102222111211 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 12102222111211 its reverse (11211122220121), we get a palindrome (23313344331332).

The spelling of 12102222111211 in words is "twelve trillion, one hundred two billion, two hundred twenty-two million, one hundred eleven thousand, two hundred eleven".