12202112218111 has 2 divisors, whose sum is σ = 12202112218112. Its totient is φ = 12202112218110.

The previous prime is 12202112218081. The next prime is 12202112218123. The reversal of 12202112218111 is 11181221120221.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (11181221120221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12202112218111 - 2¹⁹ = 12202111693823 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12202112518111) 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, 6101056109055 + 6101056109056.

It is an arithmetic number, because the mean of its divisors is an integer number (6101056109056).

Almost surely, 2^{12202112218111} is an apocalyptic number.

12202112218111 is a deficient number, since it is larger than the sum of its proper divisors (1).

12202112218111 is an equidigital number, since it uses as much as digits as its factorization.

12202112218111 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 256, while the sum is 25.

Adding to 12202112218111 its reverse (11181221120221), we get a palindrome (23383333338332).

The spelling of 12202112218111 in words is "twelve trillion, two hundred two billion, one hundred twelve million, two hundred eighteen thousand, one hundred eleven".