To convert 22.1 to standard form, also known as scientific notation, you follow these steps:

1. Move the decimal point to create a number between 1 and 10. For 22.1, you move the decimal one place to the left:
   $2.21$

2. Count how many places you moved the decimal. In this case, you moved it 1 place.

3. Express the number as $2.21 \times 10^1$.

So, 22.1 in standard form is: $2.21 \times 10^1$

Would you like more details or have any questions?

Here are five related questions:

1. How would you convert 0.0045 to standard form?
2. Convert 456,000 to standard form.
3. What is the standard form of 5.67 billion?
4. How do you convert a negative number to standard form?
5. Write 3.14 in scientific notation.

Tip: When converting to standard form, the exponent of 10 tells you how many places the decimal was moved. A positive exponent indicates a large number, while a negative exponent indicates a small number.