20201021200201 has 2 divisors, whose sum is σ = 20201021200202. Its totient is φ = 20201021200200.

The previous prime is 20201021200181. The next prime is 20201021200277. The reversal of 20201021200201 is 10200212010202.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19943155282176 + 257865918025 = 4465776^2 + 507805^2 .

It is a cyclic number.

It is not a de Polignac number, because 20201021200201 - 2¹⁵ = 20201021167433 is a prime.

It is not a weakly prime, because it can be changed into another prime (20201021270201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10100510600100 + 10100510600101.

It is an arithmetic number, because the mean of its divisors is an integer number (10100510600101).

Almost surely, 2^{20201021200201} is an apocalyptic number.

It is an amenable number.

20201021200201 is a deficient number, since it is larger than the sum of its proper divisors (1).

20201021200201 is an equidigital number, since it uses as much as digits as its factorization.

20201021200201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 20201021200201 its reverse (10200212010202), we get a palindrome (30401233210403).

The spelling of 20201021200201 in words is "twenty trillion, two hundred one billion, twenty-one million, two hundred thousand, two hundred one".