A palindrome is a word, phrase, number, or sequence of characters that reads the same forward and backward. In other words, it remains unchanged even when reversed. They’re an interesting linguistic and mathematical phenomena that has fascinated me for a long time.

Today is February 2, 2020—or…

0
02
020
0202
02022
020220
0202202
02022020
0202202
020220
02022
0202
020
02
0
A
AB
ABR
ABRA
ABRAC
ABRACA
ABRACAD
ABRACADA
ABRACADAB
ABRACADABR
ABRACADABRA
ABRACADABR
ABRACADAB
ABRACADA
ABRACAD
ABRACA
ABRAC
ABRA
ABR
AB
A
M
MO
MOM
MO
M
W
WO
WOW
WO
W
N
NO
NOO
NOON
NOO
NO
N
C
CI
CIV
CIVI
CIVIC
CIVI
CIV
CI
C
L
LE
LEV
LEVE
LEVEL
LEVE
LEV
LE
L
D
DE
DEF
DEFI
DEFIE
DEFIED
DEFIE
DEFI
DEF
DE
D
R
RA
RAC
RACE
RACEC
RACECA
RACECAR
RACECA
RACEC
RACE
RAC
RA
R
1×1=1
11×11=121
111×111=12321
1111×1111=1234321
11111×11111=123454321
111111×111111=12345654321
1111111×1111111=1234567654321
11111111×11111111=123456787654321
111111111×111111111=12345678987654321
11111111×11111111=123456787654321
1111111×1111111=1234567654321
111111×111111=12345654321
11111×11111=123454321
1111×1111=1234321
111×111=12321
11×11=121
1×1=1
0
02
020
0202
02022
020220
0202202
02022020
0202202
020220
02022
0202
020
02
0

Happy Palindrome Day