22226012 has 12 divisors (see below), whose sum is σ = 39800376. Its totient is φ = 10854480.

The previous prime is 22226003. The next prime is 22226023. The reversal of 22226012 is 21062222.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64439 + ... + 64782.

It is an arithmetic number, because the mean of its divisors is an integer number (3316698).

Almost surely, 2^22226012 is an apocalyptic number.

It is an amenable number.

22226012 is a deficient number, since it is larger than the sum of its proper divisors (17574364).

22226012 is a wasteful number, since it uses less digits than its factorization.

22226012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129268 (or 129266 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 22226012 is about 4714.4471574088. The cubic root of 22226012 is about 281.1602029707.

Adding to 22226012 its reverse (21062222), we get a palindrome (43288234).

The spelling of 22226012 in words is "twenty-two million, two hundred twenty-six thousand, twelve".