In theory yo need something close to 30,000 bets to get the edge spot, it's what odds say, but is always about luck, you can hit x22 on green on your fist bet if you are really lucky.
How many gamblers hit x22 on the first bet ? If you started a poll on this, you will find that 90 percent of the gamblers will never hit 22x in their entire life.
That's why we say that gambling is a luck based game. Without any luck, you will never be able to hit the jackpot. We can theoretically keep on calculating the probability of getting big amounts but actually it is the luck which can make us win big.
I'd bump that estimate up to 99% of gamblers since the distribution is so large. The x22 multiplier implies that you will need at least 55 in x0.4, 22 in each of the x1's, 20 in the x1.1s, about 18 in the x1.2s, almost 16 in both the x1.3s, 11 in the x2s, 7 in the x3s and ~4 in the x5s for a total of 153 balls landing in other slots before you can get a 154th and 155th ball to land in each of the x22 bins.
All the above applies to the green bin.
So assuming we assume the balls are equally distributed in Luckybit, you have a 1.29% chance of landing x22 on green. But since they're not distributed equally after one set of 155 balls, your chances actually go down; Say if they get distributed evenly after 10 sets (for calculation purposes only, the game seems to use an infinite set), your chances go down massively since it's rare to get a new x22 green ball.