22213255 has 8 divisors (see below), whose sum is σ = 26681472. Its totient is φ = 17753568.

The previous prime is 22213183. The next prime is 22213259. The reversal of 22213255 is 55231222.

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

It is a cyclic number.

It is not a de Polignac number, because 22213255 - 2⁷ = 22213127 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22213259) 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, 7897 + ... + 10333.

It is an arithmetic number, because the mean of its divisors is an integer number (3335184).

Almost surely, 2^22213255 is an apocalyptic number.

22213255 is a deficient number, since it is larger than the sum of its proper divisors (4468217).

22213255 is a wasteful number, since it uses less digits than its factorization.

22213255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4265.

The product of its digits is 1200, while the sum is 22.

The square root of 22213255 is about 4713.0939943948. The cubic root of 22213255 is about 281.1064004388.

Adding to 22213255 its reverse (55231222), we get a palindrome (77444477).

It can be divided in two parts, 2221 and 3255, that added together give a square (5476 = 74²).

The spelling of 22213255 in words is "twenty-two million, two hundred thirteen thousand, two hundred fifty-five".