Adding to 22121000022263 its reverse (36222000012122), we get a palindrome (58343000034385).
It is a strong prime.
It is a cyclic number.
It is a congruent number.
Almost surely, 222121000022263 is an apocalyptic number.
22121000022263 is an equidigital number, since it uses as much as digits as its factorization.
22121000022263 is an odious number, because the sum of its binary digits is odd.
The spelling of 22121000022263 in words is "twenty-two trillion, one hundred twenty-one billion, twenty-two thousand, two hundred sixty-three".