12213229 has 8 divisors (see below), whose sum is σ = 14166848. Its totient is φ = 10311840.

The previous prime is 12213221. The next prime is 12213241. The reversal of 12213229 is 92231221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12213229 - 2³ = 12213221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12213221) 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, 12552 + ... + 13489.

It is an arithmetic number, because the mean of its divisors is an integer number (1770856).

Almost surely, 2^12213229 is an apocalyptic number.

It is an amenable number.

12213229 is a deficient number, since it is larger than the sum of its proper divisors (1953619).

12213229 is an equidigital number, since it uses as much as digits as its factorization.

12213229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26115.

The product of its digits is 432, while the sum is 22.

The square root of 12213229 is about 3494.7430520712. The cubic root of 12213229 is about 230.2909298906.

The spelling of 12213229 in words is "twelve million, two hundred thirteen thousand, two hundred twenty-nine".