11212110112 has 96 divisors (see below), whose sum is σ = 25604812800. Its totient is φ = 4733622528.

The previous prime is 11212110103. The next prime is 11212110139. The reversal of 11212110112 is 21101121211.

It is a happy number.

It is a super-2 number, since 2×11212110112² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11212110092 and 11212110101.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8904939 + ... + 8906197.

It is an arithmetic number, because the mean of its divisors is an integer number (266716800).

Almost surely, 2^11212110112 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11212110112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12802406400).

11212110112 is an abundant number, since it is smaller than the sum of its proper divisors (14392702688).

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

11212110112 is a wasteful number, since it uses less digits than its factorization.

11212110112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1838 (or 1830 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 11212110112 its reverse (21101121211), we get a palindrome (32313231323).

The spelling of 11212110112 in words is "eleven billion, two hundred twelve million, one hundred ten thousand, one hundred twelve".