To solve the problem we must know about Scientific notations.
The way through which a very small or a very large number can be written in shorthand. In scientific notations when a number between 1 and 10s is multiplied by a power of 10.
For example, 6,500,000,000,000 can be written as 6.5e+12.
The number of 221,000,000,000,000,000,000 can be represented as 2.21e+21.
Given to us
The above number can be written as 2.21e+21.
As in scientific notations, the number between 1 and 10 can only be represented, therefore, the number can be only 2.21e+21.
Hence, the number of 221,000,000,000,000,000,000 can be represented as 2.21e+21.
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