201101020201 has 4 divisors (see below), whose sum is σ = 201206145492. Its totient is φ = 200995894912.

The previous prime is 201101020157. The next prime is 201101020213. The reversal of 201101020201 is 102020101102.

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 160004000025 + 41097020176 = 400005^2 + 202724^2 .

It is a cyclic number.

It is not a de Polignac number, because 201101020201 - 2⁹ = 201101019689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201101020261) 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 in 3 ways as a sum of consecutive naturals, for example, 52559776 + ... + 52563601.

It is an arithmetic number, because the mean of its divisors is an integer number (50301536373).

Almost surely, 2^201101020201 is an apocalyptic number.

It is an amenable number.

201101020201 is a deficient number, since it is larger than the sum of its proper divisors (105125291).

201101020201 is a wasteful number, since it uses less digits than its factorization.

201101020201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105125290.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 201101020201 its reverse (102020101102), we get a palindrome (303121121303).

The spelling of 201101020201 in words is "two hundred one billion, one hundred one million, twenty thousand, two hundred one".