22240222 has 8 divisors (see below), whose sum is σ = 35116200. Its totient is φ = 10534824.

The previous prime is 22240201. The next prime is 22240223. The reversal of 22240222 is 22204222.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 22240196 and 22240205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22240223) 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, 292597 + ... + 292672.

It is an arithmetic number, because the mean of its divisors is an integer number (4389525).

Almost surely, 2^22240222 is an apocalyptic number.

22240222 is a deficient number, since it is larger than the sum of its proper divisors (12875978).

22240222 is a wasteful number, since it uses less digits than its factorization.

22240222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 585290.

The product of its (nonzero) digits is 256, while the sum is 16.

The square root of 22240222 is about 4715.9539862047. The cubic root of 22240222 is about 281.2201092843.

Adding to 22240222 its reverse (22204222), we get a palindrome (44444444).

The spelling of 22240222 in words is "twenty-two million, two hundred forty thousand, two hundred twenty-two".