The sum of the new number obtained after multiplying a number by 10 times and this number is 121. What is this number?
一个数扩大10倍后得到的新数与这个数的和为121，这个数是多少．
<gadget id="calculator">10 + 1</gadget>
<output>11</output>

<gadget id="calculator">121 / 11</gadget>
<output>11</output>

<result>11</result>