nothing inmportant. people just love patterns/coincidences/magic number appearences happening in random math

21 is the 'magic' number of bitcoin.
21mill coins
halving every 210k blocks

then e8 =00000000 (8 zeros)
number of satoshi's per btc

then take 00 away from e8 =e6 (6 zero's)
21e6= 21million