12200200021 has 2 divisors, whose sum is σ = 12200200022. Its totient is φ = 12200200020.

The previous prime is 12200200007. The next prime is 12200200043. The reversal of 12200200021 is 12000200221.

12200200021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12112103025 + 88096996 = 110055^2 + 9386^2 .

It is a cyclic number.

It is not a de Polignac number, because 12200200021 - 2⁵ = 12200199989 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12200199980 and 12200200007.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12200200091) 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 as a sum of consecutive naturals, namely, 6100100010 + 6100100011.

It is an arithmetic number, because the mean of its divisors is an integer number (6100100011).

Almost surely, 2^12200200021 is an apocalyptic number.

It is an amenable number.

12200200021 is a deficient number, since it is larger than the sum of its proper divisors (1).

12200200021 is an equidigital number, since it uses as much as digits as its factorization.

12200200021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16, while the sum is 10.

Adding to 12200200021 its reverse (12000200221), we get a palindrome (24200400242).

The spelling of 12200200021 in words is "twelve billion, two hundred million, two hundred thousand, twenty-one".