22222...22221 (244-digits)

This number is a prime.

                                       2222 2222222222 2222222222 2222222222
2222222222 2222222222 2222222222 2222222222 2222222222 2222222222 2222222222
2222222222 2222222222 2222222222 2222222222 2222222222 2222222222 2222222222
2222222222 2222222222 2222222222 2222222222 2222222222 2222222222 2222222221

Just showing those entries submitted by 'Patterson': (Click here to show all)

If we call this number p, then the sum of the digits of this near rep-digit prime is prime, as well as 4*p+3 is another near rep-digit prime. [Patterson]