22123316 has 12 divisors (see below), whose sum is σ = 39261600. Its totient is φ = 10905720.

The previous prime is 22123303. The next prime is 22123319. The reversal of 22123316 is 61332122.

It is a happy number.

It is a super-2 number, since 2×22123316² = 978882221671712, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22123319) 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 in 3 ways as a sum of consecutive naturals, for example, 38666 + ... + 39233.

It is an arithmetic number, because the mean of its divisors is an integer number (3271800).

Almost surely, 2^22123316 is an apocalyptic number.

It is an amenable number.

22123316 is a deficient number, since it is larger than the sum of its proper divisors (17138284).

22123316 is a wasteful number, since it uses less digits than its factorization.

22123316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77974 (or 77972 counting only the distinct ones).

The product of its digits is 432, while the sum is 20.

The square root of 22123316 is about 4703.5429199700. The cubic root of 22123316 is about 280.7264977272.

Adding to 22123316 its reverse (61332122), we get a palindrome (83455438).

The spelling of 22123316 in words is "twenty-two million, one hundred twenty-three thousand, three hundred sixteen".