11222222233889 has 2 divisors, whose sum is σ = 11222222233890. Its totient is φ = 11222222233888.

The previous prime is 11222222233853. The next prime is 11222222233919. The reversal of 11222222233889 is 98833222222211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11144300302864 + 77921931025 = 3338308^2 + 279145^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11222222233889 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a plaindrome in base 10.

It is not a weakly prime, because it can be changed into another prime (11222222239889) 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, 5611111116944 + 5611111116945.

It is an arithmetic number, because the mean of its divisors is an integer number (5611111116945).

Almost surely, 2^{11222222233889} is an apocalyptic number.

It is an amenable number.

11222222233889 is a deficient number, since it is larger than the sum of its proper divisors (1).

11222222233889 is an equidigital number, since it uses as much as digits as its factorization.

11222222233889 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 663552, while the sum is 47.

The spelling of 11222222233889 in words is "eleven trillion, two hundred twenty-two billion, two hundred twenty-two million, two hundred thirty-three thousand, eight hundred eighty-nine".