Almost surely, 2122211221220011 is an apocalyptic number.
122211221220011 is a gapful number since it is divisible by the number (11) formed by its first and last digit.
122211221220011 is a wasteful number, since it uses less digits than its factorization.
122211221220011 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1538.
Adding to 122211221220011 its reverse (110022122112221), we get a palindrome (232233343332232).
The spelling of 122211221220011 in words is "one hundred twenty-two trillion, two hundred eleven billion, two hundred twenty-one million, two hundred twenty thousand, eleven".