11120211111 has 8 divisors (see below), whose sum is σ = 15607313920. Its totient is φ = 7023291192.

The previous prime is 11120211079. The next prime is 11120211119. The reversal of 11120211111 is 11111202111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11120211111 - 2⁵ = 11120211079 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 (11120211119) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 97545655 + ... + 97545768.

It is an arithmetic number, because the mean of its divisors is an integer number (1950914240).

Almost surely, 2^11120211111 is an apocalyptic number.

11120211111 is a deficient number, since it is larger than the sum of its proper divisors (4487102809).

11120211111 is a wasteful number, since it uses less digits than its factorization.

11120211111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195091445.

The product of its (nonzero) digits is 4, while the sum is 12.

Adding to 11120211111 its reverse (11111202111), we get a palindrome (22231413222).

It can be divided in two parts, 111202111 and 11, that multiplied together give a palindrome (1223223221).

The spelling of 11120211111 in words is "eleven billion, one hundred twenty million, two hundred eleven thousand, one hundred eleven".