11122210011989 has 2 divisors, whose sum is σ = 11122210011990. Its totient is φ = 11122210011988.

The previous prime is 11122210011961. The next prime is 11122210012003. The reversal of 11122210011989 is 98911001222111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7722674260900 + 3399535751089 = 2778970^2 + 1843783^2 .

It is a cyclic number.

It is not a de Polignac number, because 11122210011989 - 2¹² = 11122210007893 is a prime.

It is a super-2 number, since 2×11122210011989² (a number of 27 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11122210016989) 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, 5561105005994 + 5561105005995.

It is an arithmetic number, because the mean of its divisors is an integer number (5561105005995).

Almost surely, 2^{11122210011989} is an apocalyptic number.

It is an amenable number.

11122210011989 is a deficient number, since it is larger than the sum of its proper divisors (1).

11122210011989 is an equidigital number, since it uses as much as digits as its factorization.

11122210011989 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 38.

The spelling of 11122210011989 in words is "eleven trillion, one hundred twenty-two billion, two hundred ten million, eleven thousand, nine hundred eighty-nine".