It is a semiprime because it is the product of two primes.
It is a cyclic number.
It is a Duffinian number.
It is a Curzon number.
Almost surely, 210020120121001 is an apocalyptic number.
It is an amenable number.
10020120121001 is an equidigital number, since it uses as much as digits as its factorization.
10020120121001 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 103300207530.
Adding to 10020120121001 its reverse (10012102102001), we get a palindrome (20032222223002).
The spelling of 10020120121001 in words is "ten trillion, twenty billion, one hundred twenty million, one hundred twenty-one thousand, one".