Which of the numbers below is the greatest? ($2003$ Math Kangaroo Problem, Level $9-10$, Question \#$11$) 
Overseas Competition->Knowledge Point->Calculation Modules->Power->Application of Powers
$2^{2222}\textgreater2^{2220}=\left (2^{10}\right )^{222}=1024^{222}\textgreater22^{222}$. According to this rule, $\text{E}\textgreater\text{D}\textgreater\text{C}\textgreater\text{B}\textgreater\text{A}$. 