Adding to 100121202221010 its reverse (10122202121001), we get a palindrome (110243404342011).
It is a Curzon number.
It is an unprimeable number.
Almost surely, 2100121202221010 is an apocalyptic number.
100121202221010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
100121202221010 is a wasteful number, since it uses less digits than its factorization.
100121202221010 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3337373407377.
The spelling of 100121202221010 in words is "one hundred trillion, one hundred twenty-one billion, two hundred two million, two hundred twenty-one thousand, ten".