22140442444 has 12 divisors (see below), whose sum is σ = 38751328000. Its totient is φ = 11068634448.

The previous prime is 22140442411. The next prime is 22140442463. The reversal of 22140442444 is 44424404122.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 365019 + ... + 421330.

Almost surely, 2^22140442444 is an apocalyptic number.

It is an amenable number.

22140442444 is a deficient number, since it is larger than the sum of its proper divisors (16610885556).

22140442444 is a wasteful number, since it uses less digits than its factorization.

22140442444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 793392 (or 793390 counting only the distinct ones).

The product of its (nonzero) digits is 32768, while the sum is 31.

Adding to 22140442444 its reverse (44424404122), we get a palindrome (66564846566).

The spelling of 22140442444 in words is "twenty-two billion, one hundred forty million, four hundred forty-two thousand, four hundred forty-four".