12110221102021 has 12 divisors (see below), whose sum is σ = 14087783635020. Its totient is φ = 10379906880000.

The previous prime is 12110221102013. The next prime is 12110221102037. The reversal of 12110221102021 is 12020112201121.

It can be written as a sum of positive squares in 2 ways, for example, as 9903766350625 + 2206454751396 = 3147025^2 + 1485414^2 .

It is not a de Polignac number, because 12110221102021 - 2³ = 12110221102013 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12110221101986 and 12110221102004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12110221102051) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1536730 + ... + 5155771.

It is an arithmetic number, because the mean of its divisors is an integer number (1173981969585).

Almost surely, 2^{12110221102021} is an apocalyptic number.

It is an amenable number.

12110221102021 is a deficient number, since it is larger than the sum of its proper divisors (1977562532999).

12110221102021 is an equidigital number, since it uses as much as digits as its factorization.

12110221102021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6729444 (or 6729437 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 12110221102021 its reverse (12020112201121), we get a palindrome (24130333303142).

The spelling of 12110221102021 in words is "twelve trillion, one hundred ten billion, two hundred twenty-one million, one hundred two thousand, twenty-one".