11189223 has 12 divisors (see below), whose sum is σ = 16191240. Its totient is φ = 7446096.

The previous prime is 11189203. The next prime is 11189231. The reversal of 11189223 is 32298111.

It is not a de Polignac number, because 11189223 - 2¹⁸ = 10927079 is a prime.

It is a super-2 number, since 2×11189223² = 250397422687458, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11189203) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9040 + ... + 10202.

It is an arithmetic number, because the mean of its divisors is an integer number (1349270).

Almost surely, 2^11189223 is an apocalyptic number.

11189223 is a deficient number, since it is larger than the sum of its proper divisors (5002017).

11189223 is a wasteful number, since it uses less digits than its factorization.

11189223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2238 (or 2235 counting only the distinct ones).

The product of its digits is 864, while the sum is 27.

The square root of 11189223 is about 3345.0295962816. The cubic root of 11189223 is about 223.6660028227. Note that the first 3 decimals are identical.

The spelling of 11189223 in words is "eleven million, one hundred eighty-nine thousand, two hundred twenty-three".