Q: Is 221,101,001 a Palindrome?
A: No, the number 221,101,001 is not a palindrome.
A palindromic number is number that remains the same when its digits are reversed.
Here's how to check if a number is a palindrome:
Step 1
Take the original number and reverse it.
Here is the original number color coded:
221101001
Now we reverse it like this:
100101122
Notice the colors are going in the opposite direction now
Step 2
Compare the two numbers. If they are exactly the same then the number is a palindrome.
Is 221101001 = 100101122?
Answer:
NO, so that means the number 221,101,001 is not a palindrome!
Here are more examples of potential palindrome numbers in sequence:
| Number | 221,100,999 | 221,101,000 | 221,101,002 | 221,101,003 |
| Palindrome? | no | no | no | no |