22122323 has 4 divisors (see below), whose sum is σ = 22254960. Its totient is φ = 21989688.

The previous prime is 22122311. The next prime is 22122341. The reversal of 22122323 is 32322122.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 22122323 - 2⁶ = 22122259 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22122223) 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 3 ways as a sum of consecutive naturals, for example, 66068 + ... + 66401.

It is an arithmetic number, because the mean of its divisors is an integer number (5563740).

Almost surely, 2^22122323 is an apocalyptic number.

22122323 is a deficient number, since it is larger than the sum of its proper divisors (132637).

22122323 is a wasteful number, since it uses less digits than its factorization.

22122323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132636.

The product of its digits is 288, while the sum is 17.

The square root of 22122323 is about 4703.4373600591. The cubic root of 22122323 is about 280.7222975494.

Adding to 22122323 its reverse (32322122), we get a palindrome (54444445).

The spelling of 22122323 in words is "twenty-two million, one hundred twenty-two thousand, three hundred twenty-three".