11222215 has 8 divisors (see below), whose sum is σ = 13491360. Its totient is φ = 8961312.

The previous prime is 11222209. The next prime is 11222219. The reversal of 11222215 is 51222211.

It is a happy number.

11222215 is digitally balanced in base 3, 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 a cyclic number.

It is not a de Polignac number, because 11222215 - 2⁷ = 11222087 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11222219) 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, 1501 + ... + 4969.

It is an arithmetic number, because the mean of its divisors is an integer number (1686420).

Almost surely, 2^11222215 is an apocalyptic number.

11222215 is a deficient number, since it is larger than the sum of its proper divisors (2269145).

11222215 is an equidigital number, since it uses as much as digits as its factorization.

11222215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4121.

The product of its digits is 80, while the sum is 16.

The square root of 11222215 is about 3349.9574624165. The cubic root of 11222215 is about 223.8856173566.

Adding to 11222215 its reverse (51222211), we get a palindrome (62444426).

The spelling of 11222215 in words is "eleven million, two hundred twenty-two thousand, two hundred fifteen".