22140222444 has 72 divisors (see below), whose sum is σ = 58467182592. Its totient is φ = 7055929440.

The previous prime is 22140222443. The next prime is 22140222457. The reversal of 22140222444 is 44422204122.

22140222444 is a `hidden beast` number, since 2 + 214 + 0 + 2 + 2 + 2 + 444 = 666.

It is not an unprimeable number, because it can be changed into a prime (22140222443) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 26884 + ... + 212139.

Almost surely, 2^22140222444 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22140222444, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29233591296).

22140222444 is an abundant number, since it is smaller than the sum of its proper divisors (36326960148).

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

22140222444 is a wasteful number, since it uses less digits than its factorization.

22140222444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239147 (or 239142 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 27.

Adding to 22140222444 its reverse (44422204122), we get a palindrome (66562426566).

The spelling of 22140222444 in words is "twenty-two billion, one hundred forty million, two hundred twenty-two thousand, four hundred forty-four".