11122144 has 48 divisors (see below), whose sum is σ = 25159680. Its totient is φ = 4786560.

The previous prime is 11122141. The next prime is 11122171. The reversal of 11122144 is 44122111.

It is a happy number.

11122144 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11122141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5857 + ... + 7519.

It is an arithmetic number, because the mean of its divisors is an integer number (524160).

Almost surely, 2^11122144 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 11122144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12579840).

11122144 is an abundant number, since it is smaller than the sum of its proper divisors (14037536).

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

11122144 is a wasteful number, since it uses less digits than its factorization.

11122144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1703 (or 1695 counting only the distinct ones).

The product of its digits is 64, while the sum is 16.

The square root of 11122144 is about 3334.9878560499. The cubic root of 11122144 is about 223.2181500552.

Adding to 11122144 its reverse (44122111), we get a palindrome (55244255).

The spelling of 11122144 in words is "eleven million, one hundred twenty-two thousand, one hundred forty-four".