22355223 has 16 divisors (see below), whose sum is σ = 32837376. Its totient is φ = 13415040.

The previous prime is 22355171. The next prime is 22355237. The reversal of 22355223 is 32255322.

It is not a de Polignac number, because 22355223 - 2²¹ = 20258071 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22355193 and 22355202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22355243) 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, 111 + ... + 6687.

It is an arithmetic number, because the mean of its divisors is an integer number (2052336).

Almost surely, 2^22355223 is an apocalyptic number.

22355223 is a deficient number, since it is larger than the sum of its proper divisors (10482153).

22355223 is a wasteful number, since it uses less digits than its factorization.

22355223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6694.

The product of its digits is 3600, while the sum is 24.

The square root of 22355223 is about 4728.1310261032. The cubic root of 22355223 is about 281.7039925014.

Subtracting 22355223 from its reverse (32255322), we obtain a palindrome (9900099).

It can be divided in two parts, 22355 and 223, that added together give a triangular number (22578 = T₂₁₂).

The spelling of 22355223 in words is "twenty-two million, three hundred fifty-five thousand, two hundred twenty-three".