11142422 has 4 divisors (see below), whose sum is σ = 16713636. Its totient is φ = 5571210.

The previous prime is 11142413. The next prime is 11142427. The reversal of 11142422 is 22424111.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 11142422.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11142427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2785604 + ... + 2785607.

It is an arithmetic number, because the mean of its divisors is an integer number (4178409).

Almost surely, 2^11142422 is an apocalyptic number.

11142422 is a deficient number, since it is larger than the sum of its proper divisors (5571214).

11142422 is an equidigital number, since it uses as much as digits as its factorization.

11142422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5571213.

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

The square root of 11142422 is about 3338.0266625658. The cubic root of 11142422 is about 223.3537255210.

Adding to 11142422 its reverse (22424111), we get a palindrome (33566533).

The spelling of 11142422 in words is "eleven million, one hundred forty-two thousand, four hundred twenty-two".