22213224444 has 24 divisors (see below), whose sum is σ = 54558797440. Its totient is φ = 7014702384.

The previous prime is 22213224431. The next prime is 22213224493. The reversal of 22213224444 is 44442231222.

It is a happy number.

It is a nude number because it is divisible by every one of its digits.

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, 48712984 + ... + 48713439.

Almost surely, 2^22213224444 is an apocalyptic number.

It is an amenable number.

22213224444 is an abundant number, since it is smaller than the sum of its proper divisors (32345572996).

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

22213224444 is a wasteful number, since it uses less digits than its factorization.

22213224444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97426449 (or 97426447 counting only the distinct ones).

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

Adding to 22213224444 its reverse (44442231222), we get a palindrome (66655455666).

The spelling of 22213224444 in words is "twenty-two billion, two hundred thirteen million, two hundred twenty-four thousand, four hundred forty-four".