11135222144 has 32 divisors (see below), whose sum is σ = 22724520840. Its totient is φ = 5431813120.

The previous prime is 11135222129. The next prime is 11135222177. The reversal of 11135222144 is 44122253111.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 1055654 + ... + 1066149.

Almost surely, 2^11135222144 is an apocalyptic number.

It is an amenable number.

11135222144 is an abundant number, since it is smaller than the sum of its proper divisors (11589298696).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11135222144 is an equidigital number, since it uses as much as digits as its factorization.

11135222144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2121858 (or 2121846 counting only the distinct ones).

The product of its digits is 1920, while the sum is 26.

Adding to 11135222144 its reverse (44122253111), we get a palindrome (55257475255).

The spelling of 11135222144 in words is "eleven billion, one hundred thirty-five million, two hundred twenty-two thousand, one hundred forty-four".