12000203010221 has 2 divisors, whose sum is σ = 12000203010222. Its totient is φ = 12000203010220.

The previous prime is 12000203010193. The next prime is 12000203010227. The reversal of 12000203010221 is 12201030200021.

It is a happy number.

12000203010221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7938926112100 + 4061276898121 = 2817610^2 + 2015261^2 .

It is a cyclic number.

It is not a de Polignac number, because 12000203010221 - 2³⁸ = 11725325103277 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 12000203010196 and 12000203010205.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12000203010227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6000101505110 + 6000101505111.

It is an arithmetic number, because the mean of its divisors is an integer number (6000101505111).

Almost surely, 2^{12000203010221} is an apocalyptic number.

It is an amenable number.

12000203010221 is a deficient number, since it is larger than the sum of its proper divisors (1).

12000203010221 is an equidigital number, since it uses as much as digits as its factorization.

12000203010221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 12000203010221 its reverse (12201030200021), we get a palindrome (24201233210242).

The spelling of 12000203010221 in words is "twelve trillion, two hundred three million, ten thousand, two hundred twenty-one".