201112222111111 has 4 divisors (see below), whose sum is σ = 201124585330312. Its totient is φ = 201099858891912.

The previous prime is 201112222111067. The next prime is 201112222111147. The reversal of 201112222111111 is 111111222211102.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 201112222111111 - 2¹³ = 201112222102919 is a prime.

It is a super-2 number, since 2×201112222111111² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201112222112111) 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, 6181585200 + ... + 6181617733.

It is an arithmetic number, because the mean of its divisors is an integer number (50281146332578).

Almost surely, 2^{201112222111111} is an apocalyptic number.

201112222111111 is a deficient number, since it is larger than the sum of its proper divisors (12363219201).

201112222111111 is a wasteful number, since it uses less digits than its factorization.

201112222111111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12363219200.

The product of its (nonzero) digits is 32, while the sum is 19.

Adding to 201112222111111 its reverse (111111222211102), we get a palindrome (312223444322213).

Subtracting from 201112222111111 its reverse (111111222211102), we obtain a palindrome (90000999900009).

The spelling of 201112222111111 in words is "two hundred one trillion, one hundred twelve billion, two hundred twenty-two million, one hundred eleven thousand, one hundred eleven".