12229156 has 6 divisors (see below), whose sum is σ = 21401030. Its totient is φ = 6114576.

The previous prime is 12229153. The next prime is 12229177. The reversal of 12229156 is 65192221.

It can be written as a sum of positive squares in only one way, i.e., 9096256 + 3132900 = 3016^2 + 1770^2 .

It is not an unprimeable number, because it can be changed into a prime (12229153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1528641 + ... + 1528648.

Almost surely, 2^12229156 is an apocalyptic number.

It is an amenable number.

12229156 is a deficient number, since it is larger than the sum of its proper divisors (9171874).

12229156 is a wasteful number, since it uses less digits than its factorization.

12229156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3057293 (or 3057291 counting only the distinct ones).

The product of its digits is 2160, while the sum is 28.

The square root of 12229156 is about 3497.0210179523. The cubic root of 12229156 is about 230.3909921649.

The spelling of 12229156 in words is "twelve million, two hundred twenty-nine thousand, one hundred fifty-six".