It is a happy number.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a congruent number.
It is an unprimeable number.
Almost surely, 2121221020200022 is an apocalyptic number.
121221020200022 is a wasteful number, since it uses less digits than its factorization.
121221020200022 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3190026847390.
Adding to 121221020200022 its reverse (220002020122121), we get a palindrome (341223040322143).
The spelling of 121221020200022 in words is "one hundred twenty-one trillion, two hundred twenty-one billion, twenty million, two hundred thousand, twenty-two".