12272229 has 12 divisors (see below), whose sum is σ = 18383456. Its totient is φ = 8181324.

The previous prime is 12272167. The next prime is 12272231. The reversal of 12272229 is 92227221.

12272229 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12272229 - 2⁹ = 12271717 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12272269) 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, 25009 + ... + 25494.

Almost surely, 2^12272229 is an apocalyptic number.

It is an amenable number.

12272229 is a deficient number, since it is larger than the sum of its proper divisors (6111227).

12272229 is an frugal number, since it uses more digits than its factorization.

12272229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50518 (or 50506 counting only the distinct ones).

The product of its digits is 2016, while the sum is 27.

The square root of 12272229 is about 3503.1741321265. The cubic root of 12272229 is about 230.6611662496.

The spelling of 12272229 in words is "twelve million, two hundred seventy-two thousand, two hundred twenty-nine".