12211499 has 2 divisors, whose sum is σ = 12211500. Its totient is φ = 12211498.

The previous prime is 12211483. The next prime is 12211501. The reversal of 12211499 is 99411221.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12211499 - 2⁴ = 12211483 is a prime.

Together with 12211501, it forms a pair of twin primes.

It is a Chen prime.

It is a plaindrome in base 15.

It is not a weakly prime, because it can be changed into another prime (12211469) 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, 6105749 + 6105750.

It is an arithmetic number, because the mean of its divisors is an integer number (6105750).

Almost surely, 2^12211499 is an apocalyptic number.

12211499 is a deficient number, since it is larger than the sum of its proper divisors (1).

12211499 is an equidigital number, since it uses as much as digits as its factorization.

12211499 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1296, while the sum is 29.

The square root of 12211499 is about 3494.4955286851. The cubic root of 12211499 is about 230.2800558315.

The spelling of 12211499 in words is "twelve million, two hundred eleven thousand, four hundred ninety-nine".