11120211111111 has 4 divisors (see below), whose sum is σ = 14826948148152. Its totient is φ = 7413474074072.

The previous prime is 11120211111071. The next prime is 11120211111131. The reversal of 11120211111111 is 11111111202111.

It is a happy number.

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 11120211111111 - 2²⁵ = 11120177556679 is a prime.

11120211111111 is a modest number, since divided by 11111111 gives 111202 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11120211111131) 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, 1853368518516 + ... + 1853368518521.

It is an arithmetic number, because the mean of its divisors is an integer number (3706737037038).

Almost surely, 2^{11120211111111} is an apocalyptic number.

11120211111111 is a deficient number, since it is larger than the sum of its proper divisors (3706737037041).

11120211111111 is an equidigital number, since it uses as much as digits as its factorization.

11120211111111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3706737037040.

The product of its (nonzero) digits is 4, while the sum is 15.

Adding to 11120211111111 its reverse (11111111202111), we get a palindrome (22231322313222).

It can be divided in two parts, 111202111 and 11111, that multiplied together give a palindrome (1235566655321).

The spelling of 11120211111111 in words is "eleven trillion, one hundred twenty billion, two hundred eleven million, one hundred eleven thousand, one hundred eleven".