22135223 has 8 divisors (see below), whose sum is σ = 25197696. Its totient is φ = 19247800.

The previous prime is 22135219. The next prime is 22135229. The reversal of 22135223 is 32253122.

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

It is not a de Polignac number, because 22135223 - 2² = 22135219 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22135195 and 22135204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22135229) 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 7 ways as a sum of consecutive naturals, for example, 43493 + ... + 43998.

It is an arithmetic number, because the mean of its divisors is an integer number (3149712).

Almost surely, 2^22135223 is an apocalyptic number.

22135223 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

22135223 is a deficient number, since it is larger than the sum of its proper divisors (3062473).

22135223 is a wasteful number, since it uses less digits than its factorization.

22135223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87525.

The product of its digits is 720, while the sum is 20.

The square root of 22135223 is about 4704.8084976968. The cubic root of 22135223 is about 280.7768520067.

Adding to 22135223 its reverse (32253122), we get a palindrome (54388345).

The spelling of 22135223 in words is "twenty-two million, one hundred thirty-five thousand, two hundred twenty-three".