201122001100201 has 4 divisors (see below), whose sum is σ = 201316698101332. Its totient is φ = 200927304099072.

The previous prime is 201122001100171. The next prime is 201122001100231. The reversal of 201122001100201 is 102001100221102.

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

It is an interprime number because it is at equal distance from previous prime (201122001100171) and next prime (201122001100231).

It can be written as a sum of positive squares in 2 ways, for example, as 125835559346025 + 75286441754176 = 11217645^2 + 8676776^2 .

It is a cyclic number.

It is not a de Polignac number, because 201122001100201 - 2⁷ = 201122001100073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201122001100231) 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, 97348499016 + ... + 97348501081.

It is an arithmetic number, because the mean of its divisors is an integer number (50329174525333).

Almost surely, 2^{201122001100201} is an apocalyptic number.

It is an amenable number.

201122001100201 is a deficient number, since it is larger than the sum of its proper divisors (194697001131).

201122001100201 is a wasteful number, since it uses less digits than its factorization.

201122001100201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194697001130.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 201122001100201 its reverse (102001100221102), we get a palindrome (303123101321303).

The spelling of 201122001100201 in words is "two hundred one trillion, one hundred twenty-two billion, one million, one hundred thousand, two hundred one".