11229 has 8 divisors (see below), whose sum is σ = 15840. Its totient is φ = 7056.

The previous prime is 11213. The next prime is 11239. The reversal of 11229 is 92211.

It is a happy number.

11229 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 not a de Polignac number, because 11229 - 2⁴ = 11213 is a prime.

It is an Ulam number.

11229 is an undulating number in base 14.

It is a plaindrome in base 10 and base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11239) 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, 42 + ... + 155.

It is an arithmetic number, because the mean of its divisors is an integer number (1980).

2¹¹²²⁹ is an apocalyptic number.

11229 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

11229 is the 57-th nonagonal number.

It is an amenable number.

11229 is a deficient number, since it is larger than the sum of its proper divisors (4611).

11229 is a wasteful number, since it uses less digits than its factorization.

11229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219.

The product of its digits is 36, while the sum is 15.

The square root of 11229 is about 105.9669759878. The cubic root of 11229 is about 22.3930729006.

It can be divided in two parts, 112 and 29, that added together give a palindrome (141).

The spelling of 11229 in words is "eleven thousand, two hundred twenty-nine".