11122120489 has 2 divisors, whose sum is σ = 11122120490. Its totient is φ = 11122120488.

The previous prime is 11122120481. The next prime is 11122120501. The reversal of 11122120489 is 98402122111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6469789225 + 4652331264 = 80435^2 + 68208^2 .

It is an emirp because it is prime and its reverse (98402122111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11122120489 - 2³ = 11122120481 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11122120489.

It is not a weakly prime, because it can be changed into another prime (11122120481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5561060244 + 5561060245.

It is an arithmetic number, because the mean of its divisors is an integer number (5561060245).

Almost surely, 2^11122120489 is an apocalyptic number.

It is an amenable number.

11122120489 is a deficient number, since it is larger than the sum of its proper divisors (1).

11122120489 is an equidigital number, since it uses as much as digits as its factorization.

11122120489 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2304, while the sum is 31.

The spelling of 11122120489 in words is "eleven billion, one hundred twenty-two million, one hundred twenty thousand, four hundred eighty-nine".