12211103243 has 2 divisors, whose sum is σ = 12211103244. Its totient is φ = 12211103242.

The previous prime is 12211103231. The next prime is 12211103263. The reversal of 12211103243 is 34230111221.

It is an a-pointer prime, because the next prime (12211103263) can be obtained adding 12211103243 to its sum of digits (20).

It is a weak prime.

It is an emirp because it is prime and its reverse (34230111221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12211103243 - 2⁴ = 12211103227 is a prime.

It is a super-2 number, since 2×12211103243² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12211103263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6105551621 + 6105551622.

It is an arithmetic number, because the mean of its divisors is an integer number (6105551622).

Almost surely, 2^12211103243 is an apocalyptic number.

12211103243 is a deficient number, since it is larger than the sum of its proper divisors (1).

12211103243 is an equidigital number, since it uses as much as digits as its factorization.

12211103243 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 12211103243 its reverse (34230111221), we get a palindrome (46441214464).

The spelling of 12211103243 in words is "twelve billion, two hundred eleven million, one hundred three thousand, two hundred forty-three".