Adding to 1012230121 its reverse (1210322101), we get a palindrome (2222552222).
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 an emirpimes, since its reverse is a distinct semiprime: 1210322101 = 14153 ⋅85517.
It is a cyclic number.
It is a Duffinian number.
Almost surely, 21012230121 is an apocalyptic number.
It is an amenable number.
1012230121 is an equidigital number, since it uses as much as digits as its factorization.
1012230121 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 144604310.
The square root of 1012230121 is about 31815.5641314122. The cubic root of 1012230121 is about 1004.0601994692.
The spelling of 1012230121 in words is "one billion, twelve million, two hundred thirty thousand, one hundred twenty-one".