201020100002201 has 4 divisors (see below), whose sum is σ = 201415031436900. Its totient is φ = 200625168567504.

The previous prime is 201020100002177. The next prime is 201020100002203. The reversal of 201020100002201 is 102200001020102.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 80140542015625 + 120879557986576 = 8952125^2 + 10994524^2 .

It is a cyclic number.

It is not a de Polignac number, because 201020100002201 - 2²² = 201020095807897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201020100002203) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 197465716586 + ... + 197465717603.

It is an arithmetic number, because the mean of its divisors is an integer number (50353757859225).

Almost surely, 2^{201020100002201} is an apocalyptic number.

It is an amenable number.

201020100002201 is a deficient number, since it is larger than the sum of its proper divisors (394931434699).

201020100002201 is an equidigital number, since it uses as much as digits as its factorization.

201020100002201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 394931434698.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 201020100002201 its reverse (102200001020102), we get a palindrome (303220101022303).

The spelling of 201020100002201 in words is "two hundred one trillion, twenty billion, one hundred million, two thousand, two hundred one".