22226506 has 4 divisors (see below), whose sum is σ = 33339762. Its totient is φ = 11113252.

The previous prime is 22226489. The next prime is 22226507. The reversal of 22226506 is 60562222.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 21855625 + 370881 = 4675^2 + 609^2 .

It is not an unprimeable number, because it can be changed into a prime (22226507) by changing a digit.

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 as a sum of consecutive naturals, namely, 5556625 + ... + 5556628.

Almost surely, 2^22226506 is an apocalyptic number.

22226506 is a deficient number, since it is larger than the sum of its proper divisors (11113256).

22226506 is a wasteful number, since it uses less digits than its factorization.

22226506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11113255.

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 22226506 is about 4714.4995492629. The cubic root of 22226506 is about 281.1622859971.

Adding to 22226506 its reverse (60562222), we get a palindrome (82788728).

The spelling of 22226506 in words is "twenty-two million, two hundred twenty-six thousand, five hundred six".