201110012211001 has 4 divisors (see below), whose sum is σ = 201892541441652. Its totient is φ = 200327482980352.

The previous prime is 201110012210911. The next prime is 201110012211047. The reversal of 201110012211001 is 100112210011102.

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 147135056245776 + 53974955965225 = 12129924^2 + 7346765^2 .

It is a cyclic number.

It is not a de Polignac number, because 201110012211001 - 2²⁹ = 201109475340089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201110012211061) 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, 391264614940 + ... + 391264615453.

It is an arithmetic number, because the mean of its divisors is an integer number (50473135360413).

Almost surely, 2^{201110012211001} is an apocalyptic number.

It is an amenable number.

201110012211001 is a deficient number, since it is larger than the sum of its proper divisors (782529230651).

201110012211001 is an equidigital number, since it uses as much as digits as its factorization.

201110012211001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 782529230650.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 201110012211001 its reverse (100112210011102), we get a palindrome (301222222222103).

The spelling of 201110012211001 in words is "two hundred one trillion, one hundred ten billion, twelve million, two hundred eleven thousand, one".