12211410221 has 2 divisors, whose sum is σ = 12211410222. Its totient is φ = 12211410220.

The previous prime is 12211410209. The next prime is 12211410259. The reversal of 12211410221 is 12201411221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12090102025 + 121308196 = 109955^2 + 11014^2 .

It is an emirp because it is prime and its reverse (12201411221) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12211410221 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12211410221.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12211412221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6105705110 + 6105705111.

It is an arithmetic number, because the mean of its divisors is an integer number (6105705111).

Almost surely, 2^12211410221 is an apocalyptic number.

It is an amenable number.

12211410221 is a deficient number, since it is larger than the sum of its proper divisors (1).

12211410221 is an equidigital number, since it uses as much as digits as its factorization.

12211410221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 12211410221 its reverse (12201411221), we get a palindrome (24412821442).

The spelling of 12211410221 in words is "twelve billion, two hundred eleven million, four hundred ten thousand, two hundred twenty-one".