1211224210241 has 2 divisors, whose sum is σ = 1211224210242. Its totient is φ = 1211224210240.

The previous prime is 1211224210151. The next prime is 1211224210267. The reversal of 1211224210241 is 1420124221121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 990233961025 + 220990249216 = 995105^2 + 470096^2 .

It is a cyclic number.

It is not a de Polignac number, because 1211224210241 - 2¹⁴ = 1211224193857 is a prime.

It is not a weakly prime, because it can be changed into another prime (1211224210271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 605612105120 + 605612105121.

It is an arithmetic number, because the mean of its divisors is an integer number (605612105121).

Almost surely, 2^{1211224210241} is an apocalyptic number.

It is an amenable number.

1211224210241 is a deficient number, since it is larger than the sum of its proper divisors (1).

1211224210241 is an equidigital number, since it uses as much as digits as its factorization.

1211224210241 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 512, while the sum is 23.

Adding to 1211224210241 its reverse (1420124221121), we get a palindrome (2631348431362).

The spelling of 1211224210241 in words is "one trillion, two hundred eleven billion, two hundred twenty-four million, two hundred ten thousand, two hundred forty-one".