12110200021 has 2 divisors, whose sum is σ = 12110200022. Its totient is φ = 12110200020.

The previous prime is 12110199961. The next prime is 12110200033. The reversal of 12110200021 is 12000201121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10672956100 + 1437243921 = 103310^2 + 37911^2 .

It is a cyclic number.

It is not a de Polignac number, because 12110200021 - 2¹³ = 12110191829 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12110199980 and 12110200007.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12110200721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6055100010 + 6055100011.

It is an arithmetic number, because the mean of its divisors is an integer number (6055100011).

Almost surely, 2^12110200021 is an apocalyptic number.

It is an amenable number.

12110200021 is a deficient number, since it is larger than the sum of its proper divisors (1).

12110200021 is an equidigital number, since it uses as much as digits as its factorization.

12110200021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 12110200021 its reverse (12000201121), we get a palindrome (24110401142).

The spelling of 12110200021 in words is "twelve billion, one hundred ten million, two hundred thousand, twenty-one".