11172112 has 40 divisors (see below), whose sum is σ = 25819776. Its totient is φ = 4578816.

The previous prime is 11172079. The next prime is 11172127. The reversal of 11172112 is 21127111.

It is a Harshad number since it is a multiple of its sum of digits (16).

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 a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 408 + ... + 4744.

Almost surely, 2^11172112 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 11172112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12909888).

11172112 is an abundant number, since it is smaller than the sum of its proper divisors (14647664).

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

11172112 is a wasteful number, since it uses less digits than its factorization.

11172112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4375 (or 4369 counting only the distinct ones).

The product of its digits is 28, while the sum is 16.

The square root of 11172112 is about 3342.4709422821. The cubic root of 11172112 is about 223.5519317054.

Adding to 11172112 its reverse (21127111), we get a palindrome (32299223).

The spelling of 11172112 in words is "eleven million, one hundred seventy-two thousand, one hundred twelve".