11211112112 has 20 divisors (see below), whose sum is σ = 21791383536. Its totient is φ = 5587529280.

The previous prime is 11211112097. The next prime is 11211112139. The reversal of 11211112112 is 21121111211.

It is a nude number because it is divisible by every one of its digits and also a Zuckerman number because it is divisible by the product of its digits.

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, 1121543 + ... + 1131494.

Almost surely, 2^11211112112 is an apocalyptic number.

It is an amenable number.

11211112112 is a deficient number, since it is larger than the sum of its proper divisors (10580271424).

11211112112 is a wasteful number, since it uses less digits than its factorization.

11211112112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2253356 (or 2253350 counting only the distinct ones).

The product of its digits is 8, while the sum is 14.

Adding to 11211112112 its reverse (21121111211), we get a palindrome (32332223323).

Subtracting 11211112112 from its reverse (21121111211), we obtain a palindrome (9909999099).

It can be divided in two parts, 1121111211 and 2, that multiplied together give a palindrome (2242222422).

The spelling of 11211112112 in words is "eleven billion, two hundred eleven million, one hundred twelve thousand, one hundred twelve".