221223224422 has 16 divisors (see below), whose sum is σ = 332307969840. Its totient is φ = 110453961312.

The previous prime is 221223224401. The next prime is 221223224429. The reversal of 221223224422 is 224422322122.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221223224429) 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, 9360873 + ... + 9384475.

It is an arithmetic number, because the mean of its divisors is an integer number (20769248115).

Almost surely, 2^221223224422 is an apocalyptic number.

221223224422 is a deficient number, since it is larger than the sum of its proper divisors (111084745418).

221223224422 is a wasteful number, since it uses less digits than its factorization.

221223224422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30087.

The product of its digits is 12288, while the sum is 28.

Adding to 221223224422 its reverse (224422322122), we get a palindrome (445645546544).

The spelling of 221223224422 in words is "two hundred twenty-one billion, two hundred twenty-three million, two hundred twenty-four thousand, four hundred twenty-two".