11122122112111 has 6 divisors (see below), whose sum is σ = 11814849441200. Its totient is φ = 10467879634656.

The previous prime is 11122122112069. The next prime is 11122122112139. The reversal of 11122122112111 is 11121122122111.

11122122112111 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11122122112111 - 2⁹ = 11122122111599 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11122122112511) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 19242425511 + ... + 19242426088.

Almost surely, 2^{11122122112111} is an apocalyptic number.

11122122112111 is a deficient number, since it is larger than the sum of its proper divisors (692727329089).

11122122112111 is an equidigital number, since it uses as much as digits as its factorization.

11122122112111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38484851633 (or 38484851616 counting only the distinct ones).

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

Adding to 11122122112111 its reverse (11121122122111), we get a palindrome (22243244234222).

The spelling of 11122122112111 in words is "eleven trillion, one hundred twenty-two billion, one hundred twenty-two million, one hundred twelve thousand, one hundred eleven".