11112112222112 has 24 divisors (see below), whose sum is σ = 23865786477792. Its totient is φ = 5050960100800.

The previous prime is 11112112222111. The next prime is 11112112222171. The reversal of 11112112222112 is 21122221121111.

It is a happy number.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (11112112222111) 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, 15784249964 + ... + 15784250667.

It is an arithmetic number, because the mean of its divisors is an integer number (994407769908).

Almost surely, 2^{11112112222112} is an apocalyptic number.

It is an amenable number.

11112112222112 is an abundant number, since it is smaller than the sum of its proper divisors (12753674255680).

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

11112112222112 is a wasteful number, since it uses less digits than its factorization.

11112112222112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31568500652 (or 31568500644 counting only the distinct ones).

The product of its digits is 64, while the sum is 20.

Adding to 11112112222112 its reverse (21122221121111), we get a palindrome (32234333343223).

It can be divided in two parts, 1111 and 2112222112, that multiplied together give a palindrome (2346678766432).

The spelling of 11112112222112 in words is "eleven trillion, one hundred twelve billion, one hundred twelve million, two hundred twenty-two thousand, one hundred twelve".