It is a string of nines that goes on forever.
999
999
898
2992
898
8998
99 is the largest palindrome less than 100.
Any number that is is a palindrome will always be a palindrome.
A palindrome number: If the reverse of the number is equal to the number itself, then it is said to be a palindrome number. For example: 11, 22 ,55, etc...
898
999
9999