22004222 has 16 divisors (see below), whose sum is σ = 35610192. Its totient is φ = 10158720.

The previous prime is 22004221. The next prime is 22004231. The reversal of 22004222 is 22240022.

It is a junction number, because it is equal to n+sod(n) for n = 22004197 and 22004206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22004221) 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, 4304 + ... + 7907.

It is an arithmetic number, because the mean of its divisors is an integer number (2225637).

Almost surely, 2^22004222 is an apocalyptic number.

22004222 is a deficient number, since it is larger than the sum of its proper divisors (13605970).

22004222 is a wasteful number, since it uses less digits than its factorization.

22004222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12283.

The product of its (nonzero) digits is 128, while the sum is 14.

The square root of 22004222 is about 4690.8658049448. The cubic root of 22004222 is about 280.2218564797.

Adding to 22004222 its reverse (22240022), we get a palindrome (44244244).

The spelling of 22004222 in words is "twenty-two million, four thousand, two hundred twenty-two".