12201030208021 has 2 divisors, whose sum is σ = 12201030208022. Its totient is φ = 12201030208020.

The previous prime is 12201030207967. The next prime is 12201030208033. The reversal of 12201030208021 is 12080203010221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11996351780625 + 204678427396 = 3463575^2 + 452414^2 .

It is a cyclic number.

It is not a de Polignac number, because 12201030208021 - 2⁷ = 12201030207893 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12201030207983 and 12201030208001.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12201030208091) 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, 6100515104010 + 6100515104011.

It is an arithmetic number, because the mean of its divisors is an integer number (6100515104011).

Almost surely, 2^{12201030208021} is an apocalyptic number.

It is an amenable number.

12201030208021 is a deficient number, since it is larger than the sum of its proper divisors (1).

12201030208021 is an equidigital number, since it uses as much as digits as its factorization.

12201030208021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 384, while the sum is 22.

Adding to 12201030208021 its reverse (12080203010221), we get a palindrome (24281233218242).

The spelling of 12201030208021 in words is "twelve trillion, two hundred one billion, thirty million, two hundred eight thousand, twenty-one".