201020101022201 has 4 divisors (see below), whose sum is σ = 201125182101492. Its totient is φ = 200915019942912.

The previous prime is 201020101022171. The next prime is 201020101022207. The reversal of 201020101022201 is 102220101020102.

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 98781713332201 + 102238387690000 = 9938899^2 + 10111300^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-201020101022201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201020101022207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52540536776 + ... + 52540540601.

It is an arithmetic number, because the mean of its divisors is an integer number (50281295525373).

Almost surely, 2^{201020101022201} is an apocalyptic number.

It is an amenable number.

201020101022201 is a deficient number, since it is larger than the sum of its proper divisors (105081079291).

201020101022201 is a wasteful number, since it uses less digits than its factorization.

201020101022201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105081079290.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 201020101022201 its reverse (102220101020102), we get a palindrome (303240202042303).

The spelling of 201020101022201 in words is "two hundred one trillion, twenty billion, one hundred one million, twenty-two thousand, two hundred one".