11121822 has 12 divisors (see below), whose sum is σ = 24097320.
Its totient is φ = 3707268.
The previous prime is 11121767. The next prime is 11121823. The reversal of 11121822 is 22812111.
It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 617879 = 11121822 / (1 + 1 + 1 + 2 + 1 + 8 + 2 + 2).
It is a junction number, because it is equal to n+sod(n) for n = 11121795 and 11121804.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (11121823) 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 5 ways as a sum of consecutive naturals, for example, 308922 + ... + 308957.
It is an arithmetic number, because the mean of its divisors is an integer number (2008110).
Almost surely, 211121822 is an apocalyptic number.
11121822 is an abundant number, since it is smaller than the sum of its proper divisors (12975498).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
11121822 is a wasteful number, since it uses less digits than its factorization.
11121822 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 617887 (or 617884 counting only the distinct ones).
The product of its digits is 64, while the sum is 18.
The square root of 11121822 is about 3334.9395796626.
The cubic root of 11121822 is about 223.2159958860.
Adding to 11121822 its reverse (22812111), we get a palindrome (33933933).
It can be divided in two parts, 111 and 21822, that multiplied together give a palindrome (2422242).
The spelling of 11121822 in words is "eleven million, one hundred twenty-one thousand, eight hundred twenty-two".