11222121113243 has 2 divisors, whose sum is σ = 11222121113244. Its totient is φ = 11222121113242.

The previous prime is 11222121113167. The next prime is 11222121113309. The reversal of 11222121113243 is 34231112122211.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11222121113243 - 2²⁰ = 11222120064667 is a prime.

It is not a weakly prime, because it can be changed into another prime (11222121113743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5611060556621 + 5611060556622.

It is an arithmetic number, because the mean of its divisors is an integer number (5611060556622).

Almost surely, 2^{11222121113243} is an apocalyptic number.

11222121113243 is a deficient number, since it is larger than the sum of its proper divisors (1).

11222121113243 is an equidigital number, since it uses as much as digits as its factorization.

11222121113243 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1152, while the sum is 26.

Adding to 11222121113243 its reverse (34231112122211), we get a palindrome (45453233235454).

The spelling of 11222121113243 in words is "eleven trillion, two hundred twenty-two billion, one hundred twenty-one million, one hundred thirteen thousand, two hundred forty-three".