10000201021 has 2 divisors, whose sum is σ = 10000201022. Its totient is φ = 10000201020.

The previous prime is 10000200983. The next prime is 10000201031. The reversal of 10000201021 is 12010200001.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7590765625 + 2409435396 = 87125^2 + 49086^2 .

It is a cyclic number.

It is not a de Polignac number, because 10000201021 - 2¹⁹ = 9999676733 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 10000200995 and 10000201013.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10000201031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5000100510 + 5000100511.

It is an arithmetic number, because the mean of its divisors is an integer number (5000100511).

Almost surely, 2^10000201021 is an apocalyptic number.

It is an amenable number.

10000201021 is a deficient number, since it is larger than the sum of its proper divisors (1).

10000201021 is an equidigital number, since it uses as much as digits as its factorization.

10000201021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4, while the sum is 7.

Adding to 10000201021 its reverse (12010200001), we get a palindrome (22010401022).

The spelling of 10000201021 in words is "ten billion, two hundred one thousand, twenty-one".