12110121021 has 8 divisors (see below), whose sum is σ = 16148498464. Its totient is φ = 8072578800.

The previous prime is 12110120999. The next prime is 12110121083. The reversal of 12110121021 is 12012101121.

12110121021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12110121021 - 2⁵ = 12110120989 is a prime.

It is a super-2 number, since 2×12110121021² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12110120988 and 12110121006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12110121721) 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 7 ways as a sum of consecutive naturals, for example, 174151 + ... + 233556.

It is an arithmetic number, because the mean of its divisors is an integer number (2018562308).

Almost surely, 2^12110121021 is an apocalyptic number.

It is an amenable number.

12110121021 is a deficient number, since it is larger than the sum of its proper divisors (4038377443).

12110121021 is an equidigital number, since it uses as much as digits as its factorization.

12110121021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 417611.

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

Adding to 12110121021 its reverse (12012101121), we get a palindrome (24122222142).

The spelling of 12110121021 in words is "twelve billion, one hundred ten million, one hundred twenty-one thousand, twenty-one".