11142210144 has 48 divisors (see below), whose sum is σ = 31498174512. Its totient is φ = 3428371968.

The previous prime is 11142210139. The next prime is 11142210151. The reversal of 11142210144 is 44101224111.

It is a tau number, because it is divible by the number of its divisors (48).

It is a self number, because there is not a number n which added to its sum of digits gives 11142210144.

It is a congruent number.

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, 4462779 + ... + 4465274.

It is an arithmetic number, because the mean of its divisors is an integer number (656211969).

Almost surely, 2^11142210144 is an apocalyptic number.

It is an amenable number.

11142210144 is an abundant number, since it is smaller than the sum of its proper divisors (20355964368).

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

11142210144 is a wasteful number, since it uses less digits than its factorization.

11142210144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8928079 (or 8928071 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 11142210144 its reverse (44101224111), we get a palindrome (55243434255).

The spelling of 11142210144 in words is "eleven billion, one hundred forty-two million, two hundred ten thousand, one hundred forty-four".