201112011 has 32 divisors (see below), whose sum is σ = 307641600. Its totient is φ = 129764160.

The previous prime is 201111991. The next prime is 201112019. The reversal of 201112011 is 110211102.

It is a happy number.

It is not a de Polignac number, because 201112011 - 2¹⁴ = 201095627 is a prime.

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

It is a junction number, because it is equal to n+sod(n) for n = 201111984 and 201112002.

It is not an unprimeable number, because it can be changed into a prime (201112019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 153220 + ... + 154526.

It is an arithmetic number, because the mean of its divisors is an integer number (9613800).

Almost surely, 2^201112011 is an apocalyptic number.

201112011 is a deficient number, since it is larger than the sum of its proper divisors (106529589).

201112011 is a wasteful number, since it uses less digits than its factorization.

201112011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1496 (or 1490 counting only the distinct ones).

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

The square root of 201112011 is about 14181.3966519522. The cubic root of 201112011 is about 585.8853917053.

Adding to 201112011 its reverse (110211102), we get a palindrome (311323113).

Subtracting from 201112011 its reverse (110211102), we obtain a palindrome (90900909).

It can be divided in two parts, 20111 and 2011, that added together give a palindrome (22122).

The spelling of 201112011 in words is "two hundred one million, one hundred twelve thousand, eleven".