201112011101 has 4 divisors (see below), whose sum is σ = 201127863132. Its totient is φ = 201096159072.

The previous prime is 201112011043. The next prime is 201112011103. The reversal of 201112011101 is 101110211102.

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 32951325625 + 168160685476 = 181525^2 + 410074^2 .

It is a cyclic number.

It is not a de Polignac number, because 201112011101 - 2²² = 201107816797 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201112011103) 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, 7906970 + ... + 7932363.

It is an arithmetic number, because the mean of its divisors is an integer number (50281965783).

Almost surely, 2^201112011101 is an apocalyptic number.

It is an amenable number.

201112011101 is a deficient number, since it is larger than the sum of its proper divisors (15852031).

201112011101 is a wasteful number, since it uses less digits than its factorization.

201112011101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15852030.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 201112011101 its reverse (101110211102), we get a palindrome (302222222203).

The spelling of 201112011101 in words is "two hundred one billion, one hundred twelve million, eleven thousand, one hundred one".