11142440122 has 12 divisors (see below), whose sum is σ = 18371213658. Its totient is φ = 5064745400.

The previous prime is 11142440087. The next prime is 11142440131. The reversal of 11142440122 is 22104424111.

It can be written as a sum of positive squares in only one way, i.e., 8843333521 + 2299106601 = 94039^2 + 47949^2 .

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 11142440093 and 11142440102.

It is an unprimeable number.

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, 23021329 + ... + 23021812.

Almost surely, 2^11142440122 is an apocalyptic number.

11142440122 is a deficient number, since it is larger than the sum of its proper divisors (7228773536).

11142440122 is a wasteful number, since it uses less digits than its factorization.

11142440122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46043165 (or 46043154 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 22.

Adding to 11142440122 its reverse (22104424111), we get a palindrome (33246864233).

The spelling of 11142440122 in words is "eleven billion, one hundred forty-two million, four hundred forty thousand, one hundred twenty-two".