Is this divisible by 11 ?

$(99887766554433220+1-(10000000000000000 +2233445566778899) \mod(11) =$

$1-(10000000000000000) \mod(11)= -9999 9999 9999 9999 \mod(11)=0$

Let the given number be $N$ . Then

$\begin{aligned} N & \equiv 99887766554433221-12233445566778899 \text{ (mod 11)} \\ & \equiv 998877665544332\blue31 - \blue{10} -1\red3233445566778899 + \red{10^{15}} \text{ (mod 11)} \\ & \equiv \blue{10^{15}} - 10 \text{ (mod 11)} \\ & \equiv \blue{\underbrace{99999999999999}_{\text{Number of 9s}=14}0 + 10} - 10 \text{ (mod 11)} \\ & \equiv \underbrace{99999999999999}_{\text{Number of 9s}=14}0 \text{ (mod 11)} \\ & \equiv \boxed 0 \text{ (mod 11)} \end{aligned}$

Yes , $N$ is divisible by $11$