Adding to 10211100022111 its reverse (11122000111201), we get a palindrome (21333100133312).
It is a happy number.
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 congruent number.
Almost surely, 210211100022111 is an apocalyptic number.
10211100022111 is an equidigital number, since it uses as much as digits as its factorization.
10211100022111 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1478376680.
The spelling of 10211100022111 in words is "ten trillion, two hundred eleven billion, one hundred million, twenty-two thousand, one hundred eleven".