22180227 has 8 divisors (see below), whose sum is σ = 29604864. Its totient is φ = 14771208.

The previous prime is 22180219. The next prime is 22180229. The reversal of 22180227 is 72208122.

It is a happy number.

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

It is not a de Polignac number, because 22180227 - 2³ = 22180219 is a prime.

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 22180197 and 22180206.

It is not an unprimeable number, because it can be changed into a prime (22180229) 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 7 ways as a sum of consecutive naturals, for example, 43 + ... + 6660.

It is an arithmetic number, because the mean of its divisors is an integer number (3700608).

Almost surely, 2^22180227 is an apocalyptic number.

22180227 is a deficient number, since it is larger than the sum of its proper divisors (7424637).

22180227 is a wasteful number, since it uses less digits than its factorization.

22180227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7809.

The product of its (nonzero) digits is 896, while the sum is 24.

The square root of 22180227 is about 4709.5888355567. The cubic root of 22180227 is about 280.9670093782.

Adding to 22180227 its reverse (72208122), we get a palindrome (94388349).

The spelling of 22180227 in words is "twenty-two million, one hundred eighty thousand, two hundred twenty-seven".