201112011121101 has 4 divisors (see below), whose sum is σ = 268149348161472. Its totient is φ = 134074674080732.

The previous prime is 201112011121027. The next prime is 201112011121117. The reversal of 201112011121101 is 101121110211102.

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 201112011121101 - 2³³ = 201103421186509 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201112011126101) 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, 33518668520181 + ... + 33518668520186.

It is an arithmetic number, because the mean of its divisors is an integer number (67037337040368).

Almost surely, 2^{201112011121101} is an apocalyptic number.

It is an amenable number.

201112011121101 is a deficient number, since it is larger than the sum of its proper divisors (67037337040371).

201112011121101 is an equidigital number, since it uses as much as digits as its factorization.

201112011121101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67037337040370.

The product of its (nonzero) digits is 8, while the sum is 15.

Adding to 201112011121101 its reverse (101121110211102), we get a palindrome (302233121332203).

Subtracting from 201112011121101 its reverse (101121110211102), we obtain a palindrome (99990900909999).

The spelling of 201112011121101 in words is "two hundred one trillion, one hundred twelve billion, eleven million, one hundred twenty-one thousand, one hundred one".