12111288 has 32 divisors (see below), whose sum is σ = 34604160. Its totient is φ = 3460320.

The previous prime is 12111287. The next prime is 12111301. The reversal of 12111288 is 88211121.

It is a Harshad number since it is a multiple of its sum of digits (24).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12111287) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35878 + ... + 36213.

It is an arithmetic number, because the mean of its divisors is an integer number (1081380).

Almost surely, 2^12111288 is an apocalyptic number.

It is an amenable number.

12111288 is an abundant number, since it is smaller than the sum of its proper divisors (22492872).

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

12111288 is a wasteful number, since it uses less digits than its factorization.

12111288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72107 (or 72103 counting only the distinct ones).

The product of its digits is 256, while the sum is 24.

The square root of 12111288 is about 3480.1275838682. The cubic root of 12111288 is about 229.6484105167.

The spelling of 12111288 in words is "twelve million, one hundred eleven thousand, two hundred eighty-eight".