22221234422 has 16 divisors (see below), whose sum is σ = 34297016112. Its totient is φ = 10793047200.

The previous prime is 22221234389. The next prime is 22221234433. The reversal of 22221234422 is 22443212222.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 22221234391 and 22221234400.

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, 1027088 + ... + 1048499.

It is an arithmetic number, because the mean of its divisors is an integer number (2143563507).

Almost surely, 2^22221234422 is an apocalyptic number.

22221234422 is a deficient number, since it is larger than the sum of its proper divisors (12075781690).

22221234422 is a wasteful number, since it uses less digits than its factorization.

22221234422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2075743.

The product of its digits is 6144, while the sum is 26.

Adding to 22221234422 its reverse (22443212222), we get a palindrome (44664446644).

The spelling of 22221234422 in words is "twenty-two billion, two hundred twenty-one million, two hundred thirty-four thousand, four hundred twenty-two".