11011111111122 has 8 divisors (see below), whose sum is σ = 22022222222256. Its totient is φ = 3670370370372.

The previous prime is 11011111111093. The next prime is 11011111111141. The reversal of 11011111111122 is 22111111111011.

It is a happy number.

11011111111122 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.

11011111111122 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 917592592588 + ... + 917592592599.

It is an arithmetic number, because the mean of its divisors is an integer number (2752777777782).

Almost surely, 2^{11011111111122} is an apocalyptic number.

11011111111122 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11011111111122 is a wasteful number, since it uses less digits than its factorization.

11011111111122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1835185185192.

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

Adding to 11011111111122 its reverse (22111111111011), we get a palindrome (33122222222133).

The spelling of 11011111111122 in words is "eleven trillion, eleven billion, one hundred eleven million, one hundred eleven thousand, one hundred twenty-two".