1122222099989 has 2 divisors, whose sum is σ = 1122222099990. Its totient is φ = 1122222099988.

The previous prime is 1122222099983. The next prime is 1122222100009. The reversal of 1122222099989 is 9899902222211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 695277471889 + 426944628100 = 833833^2 + 653410^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1122222099989 is a prime.

It is a super-2 number, since 2×1122222099989² (a number of 25 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 (1122222099983) 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, 561111049994 + 561111049995.

It is an arithmetic number, because the mean of its divisors is an integer number (561111049995).

Almost surely, 2^{1122222099989} is an apocalyptic number.

It is an amenable number.

1122222099989 is a deficient number, since it is larger than the sum of its proper divisors (1).

1122222099989 is an equidigital number, since it uses as much as digits as its factorization.

1122222099989 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1679616, while the sum is 56.

The spelling of 1122222099989 in words is "one trillion, one hundred twenty-two billion, two hundred twenty-two million, ninety-nine thousand, nine hundred eighty-nine".