11221442 has 16 divisors (see below), whose sum is σ = 17470464. Its totient is φ = 5400000.

The previous prime is 11221439. The next prime is 11221451. The reversal of 11221442 is 24412211.

11221442 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 11221442.

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, 14567 + ... + 15317.

It is an arithmetic number, because the mean of its divisors is an integer number (1091904).

Almost surely, 2^11221442 is an apocalyptic number.

11221442 is a deficient number, since it is larger than the sum of its proper divisors (6249022).

11221442 is a wasteful number, since it uses less digits than its factorization.

11221442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1025.

The product of its digits is 128, while the sum is 17.

The square root of 11221442 is about 3349.8420858303. The cubic root of 11221442 is about 223.8804767328.

Adding to 11221442 its reverse (24412211), we get a palindrome (35633653).

The spelling of 11221442 in words is "eleven million, two hundred twenty-one thousand, four hundred forty-two".