Adding to 10121101 its reverse (10112101), we get a palindrome (20233202).
Multipling 10121101 by its reverse (10112101), we get a palindrome (102345595543201).
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.
It is a cyclic number.
It is a Duffinian number.
It is a congruent number.
Almost surely, 210121101 is an apocalyptic number.
It is an amenable number.
10121101 is an equidigital number, since it uses as much as digits as its factorization.
10121101 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 9298.
The square root of 10121101 is about 3181.3677876033. The cubic root of 10121101 is about 216.3096624446.
The spelling of 10121101 in words is "ten million, one hundred twenty-one thousand, one hundred one".