22424222 has 16 divisors (see below), whose sum is σ = 35074944. Its totient is φ = 10740000.

The previous prime is 22424219. The next prime is 22424231. The reversal of 22424222 is 22242422.

It is a junction number, because it is equal to n+sod(n) for n = 22424194 and 22424203.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4472 + ... + 8052.

It is an arithmetic number, because the mean of its divisors is an integer number (2192184).

Almost surely, 2^22424222 is an apocalyptic number.

22424222 is a deficient number, since it is larger than the sum of its proper divisors (12650722).

22424222 is a wasteful number, since it uses less digits than its factorization.

22424222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3715.

The product of its digits is 1024, while the sum is 20.

The square root of 22424222 is about 4735.4220508842. The cubic root of 22424222 is about 281.9935196271.

Adding to 22424222 its reverse (22242422), we get a palindrome (44666644).

It can be divided in two parts, 2242422 and 2, that multiplied together give a palindrome (4484844).

The spelling of 22424222 in words is "twenty-two million, four hundred twenty-four thousand, two hundred twenty-two".