12136211 has 2 divisors, whose sum is σ = 12136212. Its totient is φ = 12136210.

The previous prime is 12136171. The next prime is 12136213. The reversal of 12136211 is 11263121.

It is a strong prime.

It is an emirp because it is prime and its reverse (11263121) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12136211 is a prime.

Together with 12136213, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12136211.

It is not a weakly prime, because it can be changed into another prime (12136213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6068105 + 6068106.

It is an arithmetic number, because the mean of its divisors is an integer number (6068106).

Almost surely, 2^12136211 is an apocalyptic number.

12136211 is a deficient number, since it is larger than the sum of its proper divisors (1).

12136211 is an equidigital number, since it uses as much as digits as its factorization.

12136211 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 72, while the sum is 17.

The square root of 12136211 is about 3483.7065031371. The cubic root of 12136211 is about 229.8058285606.

Adding to 12136211 its reverse (11263121), we get a palindrome (23399332).

The spelling of 12136211 in words is "twelve million, one hundred thirty-six thousand, two hundred eleven".