22216423 has 8 divisors (see below), whose sum is σ = 22859408. Its totient is φ = 21579264.

The previous prime is 22216417. The next prime is 22216451. The reversal of 22216423 is 32461222.

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

It is a cyclic number.

It is not a de Polignac number, because 22216423 - 2⁹ = 22215911 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22216394 and 22216403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22216123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6961 + ... + 9637.

It is an arithmetic number, because the mean of its divisors is an integer number (2857426).

Almost surely, 2^22216423 is an apocalyptic number.

22216423 is a deficient number, since it is larger than the sum of its proper divisors (642985).

22216423 is a wasteful number, since it uses less digits than its factorization.

22216423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2913.

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

The square root of 22216423 is about 4713.4300673713. The cubic root of 22216423 is about 281.1197633723.

Adding to 22216423 its reverse (32461222), we get a palindrome (54677645).

The spelling of 22216423 in words is "twenty-two million, two hundred sixteen thousand, four hundred twenty-three".