201110110011121 has 4 divisors (see below), whose sum is σ = 201111901574644. Its totient is φ = 201108318447600.

The previous prime is 201110110011053. The next prime is 201110110011169. The reversal of 201110110011121 is 121110011011102.

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 198005395530721 + 3104714480400 = 14071439^2 + 1762020^2 .

It is a cyclic number.

It is not a de Polignac number, because 201110110011121 - 2²¹ = 201110107913969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201110110011221) 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, 895613370 + ... + 895837891.

It is an arithmetic number, because the mean of its divisors is an integer number (50277975393661).

Almost surely, 2^{201110110011121} is an apocalyptic number.

It is an amenable number.

201110110011121 is a deficient number, since it is larger than the sum of its proper divisors (1791563523).

201110110011121 is a wasteful number, since it uses less digits than its factorization.

201110110011121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1791563522.

The product of its (nonzero) digits is 4, while the sum is 13.

Adding to 201110110011121 its reverse (121110011011102), we get a palindrome (322220121022223).

The spelling of 201110110011121 in words is "two hundred one trillion, one hundred ten billion, one hundred ten million, eleven thousand, one hundred twenty-one".