12212211241 has 2 divisors, whose sum is σ = 12212211242. Its totient is φ = 12212211240.

The previous prime is 12212211233. The next prime is 12212211281. The reversal of 12212211241 is 14211221221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12051428841 + 160782400 = 109779^2 + 12680^2 .

It is a cyclic number.

It is not a de Polignac number, because 12212211241 - 2³ = 12212211233 is a prime.

It is not a weakly prime, because it can be changed into another prime (12212211281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6106105620 + 6106105621.

It is an arithmetic number, because the mean of its divisors is an integer number (6106105621).

Almost surely, 2^12212211241 is an apocalyptic number.

It is an amenable number.

12212211241 is a deficient number, since it is larger than the sum of its proper divisors (1).

12212211241 is an equidigital number, since it uses as much as digits as its factorization.

12212211241 is an evil number, because the sum of its binary digits is even.

The product of its digits is 128, while the sum is 19.

Adding to 12212211241 its reverse (14211221221), we get a palindrome (26423432462).

The spelling of 12212211241 in words is "twelve billion, two hundred twelve million, two hundred eleven thousand, two hundred forty-one".