201120001101 has 24 divisors (see below), whose sum is σ = 300823970304. Its totient is φ = 129345461280.

The previous prime is 201120001091. The next prime is 201120001129. The reversal of 201120001101 is 101100021102.

It is a happy number.

It is not a de Polignac number, because 201120001101 - 2⁶ = 201120001037 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201120001801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1048561 + ... + 1225446.

It is an arithmetic number, because the mean of its divisors is an integer number (12534332096).

Almost surely, 2^201120001101 is an apocalyptic number.

It is an amenable number.

201120001101 is a deficient number, since it is larger than the sum of its proper divisors (99703969203).

201120001101 is a wasteful number, since it uses less digits than its factorization.

201120001101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2274361 (or 2274358 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 201120001101 its reverse (101100021102), we get a palindrome (302220022203).

The spelling of 201120001101 in words is "two hundred one billion, one hundred twenty million, one thousand, one hundred one".