11242221231142 has 16 divisors (see below), whose sum is σ = 18455514315264. Its totient is φ = 5093669365000.

The previous prime is 11242221231139. The next prime is 11242221231151. The reversal of 11242221231142 is 24113212224211.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 11242221231142.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 821552734 + ... + 821566417.

It is an arithmetic number, because the mean of its divisors is an integer number (1153469644704).

Almost surely, 2^{11242221231142} is an apocalyptic number.

11242221231142 is a deficient number, since it is larger than the sum of its proper divisors (7213293084122).

11242221231142 is a wasteful number, since it uses less digits than its factorization.

11242221231142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1643119475.

The product of its digits is 3072, while the sum is 28.

Adding to 11242221231142 its reverse (24113212224211), we get a palindrome (35355433455353).

The spelling of 11242221231142 in words is "eleven trillion, two hundred forty-two billion, two hundred twenty-one million, two hundred thirty-one thousand, one hundred forty-two".