12110102021 has 4 divisors (see below), whose sum is σ = 12177008844. Its totient is φ = 12043195200.

The previous prime is 12110101957. The next prime is 12110102047. The reversal of 12110102021 is 12020101121.

12110102021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1024960225 + 11085141796 = 32015^2 + 105286^2 .

It is a cyclic number.

It is not a de Polignac number, because 12110102021 - 2⁶ = 12110101957 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12110101993 and 12110102011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12110102051) 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 3 ways as a sum of consecutive naturals, for example, 33453140 + ... + 33453501.

It is an arithmetic number, because the mean of its divisors is an integer number (3044252211).

Almost surely, 2^12110102021 is an apocalyptic number.

It is an amenable number.

12110102021 is a deficient number, since it is larger than the sum of its proper divisors (66906823).

12110102021 is an equidigital number, since it uses as much as digits as its factorization.

12110102021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66906822.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 12110102021 its reverse (12020101121), we get a palindrome (24130203142).

The spelling of 12110102021 in words is "twelve billion, one hundred ten million, one hundred two thousand, twenty-one".