12110110221 has 32 divisors (see below), whose sum is σ = 17851502592. Its totient is φ = 7241391360.

The previous prime is 12110110211. The next prime is 12110110279. The reversal of 12110110221 is 12201101121.

12110110221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12110110221 - 2⁵ = 12110110189 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 12110110197 and 12110110206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12110110211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 824286 + ... + 838848.

It is an arithmetic number, because the mean of its divisors is an integer number (557859456).

Almost surely, 2^12110110221 is an apocalyptic number.

12110110221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12110110221 is a deficient number, since it is larger than the sum of its proper divisors (5741392371).

12110110221 is a wasteful number, since it uses less digits than its factorization.

12110110221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14913.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 12110110221 its reverse (12201101121), we get a palindrome (24311211342).

The spelling of 12110110221 in words is "twelve billion, one hundred ten million, one hundred ten thousand, two hundred twenty-one".