22606222 has 8 divisors (see below), whose sum is σ = 34036200. Its totient is φ = 11260824.

The previous prime is 22606189. The next prime is 22606231. The reversal of 22606222 is 22260622.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×22606222² = 1022082546226568, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22606193 and 22606202.

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 3 ways as a sum of consecutive naturals, for example, 20472 + ... + 21547.

It is an arithmetic number, because the mean of its divisors is an integer number (4254525).

Almost surely, 2^22606222 is an apocalyptic number.

22606222 is a deficient number, since it is larger than the sum of its proper divisors (11429978).

22606222 is a wasteful number, since it uses less digits than its factorization.

22606222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42290.

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 22606222 is about 4754.6000883355. The cubic root of 22606222 is about 282.7543723948.

Adding to 22606222 its reverse (22260622), we get a palindrome (44866844).

The spelling of 22606222 in words is "twenty-two million, six hundred six thousand, two hundred twenty-two".