. We assign each letter of the alphabet a value corresponding to its rank. Thus, the letter A is worth 1, the letter B is worth 2, etc. Find the smallest number that is equal to the sum of the values of the letters that appear in its spelling in full.
. Let's calculate the value of the words used to write the numbers:

| One: | 35 | Two: | 54 | Three: | 81 |
| ---: | ---: | ---: | :--- | ---: | :--- |
| Four: | 82 | Five: | 43 | Six: | 52 |
| Seven: | 60 | Eight: | 58 | Nine: | 46 |
| Ten: | 37 | Eleven: | 60 | Twelve: | 71 |
| Thirteen: | 83 | Fourteen: | 123 | Fifteen: | 92 |
| Sixteen: | 64 | Twenty: | 72 | Thirty: | 82 |
| Forty: | 97 | Fifty: | 104 | Sixty: | 107 |
| Hundred: | 42 | And: | 25 |  |  |

Among the numbers listed above, those less than 100 are far exceeded by the sum of the values of their letters. We deduce that the number we are looking for is greater than 100. We verify that the numbers between 101 and 120 do not work. Since the smallest value associated with a unit digit is 43 (which is associated with 5), and a test confirms that the numbers 125, 135, 145, 155, and 165 are still far exceeded by the sum of the values of their letters, we deduce that the number we are looking for is greater than 200. The literal value of 200 is 96. Since the sum of the numbers from 1 to 20, except for 14, does not exceed 100, none of the numbers between 200 and 220, except for 214, are likely to work. We verify that 214 does not work either, nor does 221. The best candidate is now 222, which does indeed answer the question.