Adding to 12101010100122 its reverse (22100101010121), we get a palindrome (34201111110243).
Subtracting 12101010100122 from its reverse (22100101010121), we obtain a palindrome (9999090909999).
It is an unprimeable number.
Almost surely, 212101010100122 is an apocalyptic number.
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12101010100122 is a wasteful number, since it uses less digits than its factorization.
12101010100122 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1838501573.
The spelling of 12101010100122 in words is "twelve trillion, one hundred one billion, ten million, one hundred thousand, one hundred twenty-two".