11223115 has 4 divisors (see below), whose sum is σ = 13467744. Its totient is φ = 8978488.

The previous prime is 11223109. The next prime is 11223131. The reversal of 11223115 is 51132211.

11223115 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11223115 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1122307 + ... + 1122316.

It is an arithmetic number, because the mean of its divisors is an integer number (3366936).

Almost surely, 2^11223115 is an apocalyptic number.

11223115 is a deficient number, since it is larger than the sum of its proper divisors (2244629).

11223115 is an equidigital number, since it uses as much as digits as its factorization.

11223115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2244628.

The product of its digits is 60, while the sum is 16.

The square root of 11223115 is about 3350.0917897873. The cubic root of 11223115 is about 223.8916022616.

Adding to 11223115 its reverse (51132211), we get a palindrome (62355326).

The spelling of 11223115 in words is "eleven million, two hundred twenty-three thousand, one hundred fifteen".