12011229 has 12 divisors (see below), whose sum is σ = 17909632. Its totient is φ = 7749000.

The previous prime is 12011227. The next prime is 12011243. The reversal of 12011229 is 92211021.

12011229 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12011229 - 2¹ = 12011227 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12011227) 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, 21247 + ... + 21804.

Almost surely, 2^12011229 is an apocalyptic number.

It is an amenable number.

12011229 is a deficient number, since it is larger than the sum of its proper divisors (5898403).

12011229 is a wasteful number, since it uses less digits than its factorization.

12011229 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43088 (or 43085 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

The square root of 12011229 is about 3465.7220027002. The cubic root of 12011229 is about 229.0142373381.

The spelling of 12011229 in words is "twelve million, eleven thousand, two hundred twenty-nine".