11122212112111 has 8 divisors (see below), whose sum is σ = 11605825880064. Its totient is φ = 10638601621560.

The previous prime is 11122212112103. The next prime is 11122212112147. The reversal of 11122212112111 is 11121121222111.

11122212112111 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 11122212112111 - 2³ = 11122212112103 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 (11122212112171) 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, 8252766 + ... + 9505396.

It is an arithmetic number, because the mean of its divisors is an integer number (1450728235008).

Almost surely, 2^{11122212112111} is an apocalyptic number.

11122212112111 is a deficient number, since it is larger than the sum of its proper divisors (483613767953).

11122212112111 is a wasteful number, since it uses less digits than its factorization.

11122212112111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1638701.

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

Adding to 11122212112111 its reverse (11121121222111), we get a palindrome (22243333334222).

It can be divided in two parts, 111222121 and 12111, that multiplied together give a palindrome (1347011107431).

The spelling of 11122212112111 in words is "eleven trillion, one hundred twenty-two billion, two hundred twelve million, one hundred twelve thousand, one hundred eleven".