11221255 has 8 divisors (see below), whose sum is σ = 13686624. Its totient is φ = 8829600.

The previous prime is 11221253. The next prime is 11221283. The reversal of 11221255 is 55212211.

11221255 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 11221255 - 2¹ = 11221253 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 (11221253) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18091 + ... + 18700.

It is an arithmetic number, because the mean of its divisors is an integer number (1710828).

Almost surely, 2^11221255 is an apocalyptic number.

11221255 is a deficient number, since it is larger than the sum of its proper divisors (2465369).

11221255 is an equidigital number, since it uses as much as digits as its factorization.

11221255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36857.

The product of its digits is 200, while the sum is 19.

The square root of 11221255 is about 3349.8141739505. The cubic root of 11221255 is about 223.8792331053.

Adding to 11221255 its reverse (55212211), we get a palindrome (66433466).

It can be divided in two parts, 11221 and 255, that added together give a triangular number (11476 = T₁₅₁).

The spelling of 11221255 in words is "eleven million, two hundred twenty-one thousand, two hundred fifty-five".