12211343 has 2 divisors, whose sum is σ = 12211344. Its totient is φ = 12211342.

The previous prime is 12211337. The next prime is 12211351. The reversal of 12211343 is 34311221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12211343 - 2⁴ = 12211327 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12211333) 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, 6105671 + 6105672.

It is an arithmetic number, because the mean of its divisors is an integer number (6105672).

Almost surely, 2^12211343 is an apocalyptic number.

12211343 is a deficient number, since it is larger than the sum of its proper divisors (1).

12211343 is an equidigital number, since it uses as much as digits as its factorization.

12211343 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 144, while the sum is 17.

The square root of 12211343 is about 3494.4732077954. The cubic root of 12211343 is about 230.2790752300.

Adding to 12211343 its reverse (34311221), we get a palindrome (46522564).

The spelling of 12211343 in words is "twelve million, two hundred eleven thousand, three hundred forty-three".