12110110121 has 4 divisors (see below), whose sum is σ = 12636636672. Its totient is φ = 11583583572.

The previous prime is 12110110109. The next prime is 12110110139. The reversal of 12110110121 is 12101101121.

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.

It is a cyclic number.

It is not a de Polignac number, because 12110110121 - 2¹⁸ = 12109847977 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12110119121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 263263241 + ... + 263263286.

It is an arithmetic number, because the mean of its divisors is an integer number (3159159168).

Almost surely, 2^12110110121 is an apocalyptic number.

It is an amenable number.

12110110121 is a deficient number, since it is larger than the sum of its proper divisors (526526551).

12110110121 is an equidigital number, since it uses as much as digits as its factorization.

12110110121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 526526550.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 12110110121 its reverse (12101101121), we get a palindrome (24211211242).

The spelling of 12110110121 in words is "twelve billion, one hundred ten million, one hundred ten thousand, one hundred twenty-one".