22123245 has 16 divisors (see below), whose sum is σ = 35897472. Its totient is φ = 11632320.

The previous prime is 22123237. The next prime is 22123247. The reversal of 22123245 is 54232122.

It is not a de Polignac number, because 22123245 - 2³ = 22123237 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22123247) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 9322 + ... + 11451.

It is an arithmetic number, because the mean of its divisors is an integer number (2243592).

Almost surely, 2^22123245 is an apocalyptic number.

It is an amenable number.

22123245 is a deficient number, since it is larger than the sum of its proper divisors (13774227).

22123245 is a wasteful number, since it uses less digits than its factorization.

22123245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20852.

The product of its digits is 960, while the sum is 21.

The square root of 22123245 is about 4703.5353724619. The cubic root of 22123245 is about 280.7261974166.

Adding to 22123245 its reverse (54232122), we get a palindrome (76355367).

The spelling of 22123245 in words is "twenty-two million, one hundred twenty-three thousand, two hundred forty-five".