22131141404144 has 20 divisors (see below), whose sum is σ = 42893857172496. Its totient is φ = 11061758908032.

The previous prime is 22131141404143. The next prime is 22131141404173. The reversal of 22131141404144 is 44140414113122.

It is a self number, because there is not a number n which added to its sum of digits gives 22131141404144.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22131141404143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 238189229 + ... + 238282124.

Almost surely, 2^{22131141404144} is an apocalyptic number.

It is an amenable number.

22131141404144 is a deficient number, since it is larger than the sum of its proper divisors (20762715768352).

22131141404144 is a wasteful number, since it uses less digits than its factorization.

22131141404144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 476474264 (or 476474258 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 32.

Adding to 22131141404144 its reverse (44140414113122), we get a palindrome (66271555517266).

The spelling of 22131141404144 in words is "twenty-two trillion, one hundred thirty-one billion, one hundred forty-one million, four hundred four thousand, one hundred forty-four".