22213112444 has 12 divisors (see below), whose sum is σ = 38873990904. Its totient is φ = 11106257904.

The previous prime is 22213112443. The next prime is 22213112447. The reversal of 22213112444 is 44421131222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22213112443) 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, 247607 + ... + 325169.

It is an arithmetic number, because the mean of its divisors is an integer number (3239499242).

Almost surely, 2^22213112444 is an apocalyptic number.

It is an amenable number.

22213112444 is a deficient number, since it is larger than the sum of its proper divisors (16660878460).

22213112444 is a wasteful number, since it uses less digits than its factorization.

22213112444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149164 (or 149162 counting only the distinct ones).

The product of its digits is 3072, while the sum is 26.

Adding to 22213112444 its reverse (44421131222), we get a palindrome (66634243666).

The spelling of 22213112444 in words is "twenty-two billion, two hundred thirteen million, one hundred twelve thousand, four hundred forty-four".