It is a weak prime.
It is a cyclic number.
It is a plaindrome in base 10.
Almost surely, 211234567788889 is an apocalyptic number.
It is an amenable number.
11234567788889 is an equidigital number, since it uses as much as digits as its factorization.
11234567788889 is an evil number, because the sum of its binary digits is even.
The spelling of 11234567788889 in words is "eleven trillion, two hundred thirty-four billion, five hundred sixty-seven million, seven hundred eighty-eight thousand, eight hundred eighty-nine".