22144043442 has 16 divisors (see below), whose sum is σ = 45716735232. Its totient is φ = 7143239760.

The previous prime is 22144043419. The next prime is 22144043443. The reversal of 22144043442 is 24434044122.

It is a super-2 number, since 2×22144043442² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (22144043443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59526813 + ... + 59527184.

It is an arithmetic number, because the mean of its divisors is an integer number (2857295952).

Almost surely, 2^22144043442 is an apocalyptic number.

22144043442 is an abundant number, since it is smaller than the sum of its proper divisors (23572691790).

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

22144043442 is a wasteful number, since it uses less digits than its factorization.

22144043442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119054033.

The product of its (nonzero) digits is 24576, while the sum is 30.

Adding to 22144043442 its reverse (24434044122), we get a palindrome (46578087564).

The spelling of 22144043442 in words is "twenty-two billion, one hundred forty-four million, forty-three thousand, four hundred forty-two".