1122111201109 has 2 divisors, whose sum is σ = 1122111201110. Its totient is φ = 1122111201108.

The previous prime is 1122111201059. The next prime is 1122111201139. The reversal of 1122111201109 is 9011021112211.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 697141502500 + 424969698609 = 834950^2 + 651897^2 .

It is an emirp because it is prime and its reverse (9011021112211) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1122111201109 - 2¹⁷ = 1122111070037 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1122111201109.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1122111201139) 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, 561055600554 + 561055600555.

It is an arithmetic number, because the mean of its divisors is an integer number (561055600555).

Almost surely, 2^{1122111201109} is an apocalyptic number.

It is an amenable number.

1122111201109 is a deficient number, since it is larger than the sum of its proper divisors (1).

1122111201109 is an equidigital number, since it uses as much as digits as its factorization.

1122111201109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 22.

The spelling of 1122111201109 in words is "one trillion, one hundred twenty-two billion, one hundred eleven million, two hundred one thousand, one hundred nine".