11128229 has 4 divisors (see below), whose sum is σ = 12717984. Its totient is φ = 9538476.

The previous prime is 11128213. The next prime is 11128241. The reversal of 11128229 is 92282111.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 92282111 = 1571 ⋅58741.

It is a cyclic number.

It is not a de Polignac number, because 11128229 - 2⁴ = 11128213 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11128198 and 11128207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11128259) 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 3 ways as a sum of consecutive naturals, for example, 794867 + ... + 794880.

It is an arithmetic number, because the mean of its divisors is an integer number (3179496).

Almost surely, 2^11128229 is an apocalyptic number.

It is an amenable number.

11128229 is a deficient number, since it is larger than the sum of its proper divisors (1589755).

11128229 is an equidigital number, since it uses as much as digits as its factorization.

11128229 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1589754.

The product of its digits is 576, while the sum is 26.

The square root of 11128229 is about 3335.9000284781. The cubic root of 11128229 is about 223.2588506854.

The spelling of 11128229 in words is "eleven million, one hundred twenty-eight thousand, two hundred twenty-nine".