22681226 has 4 divisors (see below), whose sum is σ = 34021842. Its totient is φ = 11340612.

The previous prime is 22681207. The next prime is 22681271. The reversal of 22681226 is 62218622.

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., 22080601 + 600625 = 4699^2 + 775^2 .

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 as a sum of consecutive naturals, namely, 5670305 + ... + 5670308.

Almost surely, 2^22681226 is an apocalyptic number.

22681226 is a deficient number, since it is larger than the sum of its proper divisors (11340616).

22681226 is a wasteful number, since it uses less digits than its factorization.

22681226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11340615.

The product of its digits is 4608, while the sum is 29.

The square root of 22681226 is about 4762.4810760779. The cubic root of 22681226 is about 283.0667391617.

Adding to 22681226 its reverse (62218622), we get a palindrome (84899848).

The spelling of 22681226 in words is "twenty-two million, six hundred eighty-one thousand, two hundred twenty-six".