201110111122001 has 4 divisors (see below), whose sum is σ = 202693655304192. Its totient is φ = 199526566939812.

The previous prime is 201110111121991. The next prime is 201110111122021. The reversal of 201110111122001 is 100221111011102.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 201110111122001 - 2³⁰ = 201109037380177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201110111122021) 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, 791772090905 + ... + 791772091158.

It is an arithmetic number, because the mean of its divisors is an integer number (50673413826048).

Almost surely, 2^{201110111122001} is an apocalyptic number.

It is an amenable number.

201110111122001 is a deficient number, since it is larger than the sum of its proper divisors (1583544182191).

201110111122001 is a wasteful number, since it uses less digits than its factorization.

201110111122001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1583544182190.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 201110111122001 its reverse (100221111011102), we get a palindrome (301331222133103).

It can be divided in two parts, 201110 and 111122001, that added together give a palindrome (111323111).

The spelling of 201110111122001 in words is "two hundred one trillion, one hundred ten billion, one hundred eleven million, one hundred twenty-two thousand, one".