12201229 has 2 divisors, whose sum is σ = 12201230. Its totient is φ = 12201228.

The previous prime is 12201193. The next prime is 12201251. The reversal of 12201229 is 92210221.

12201229 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10227204 + 1974025 = 3198^2 + 1405^2 .

It is an emirp because it is prime and its reverse (92210221) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12201229 is a prime.

It is a super-2 number, since 2×12201229² = 297739978220882, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12201269) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6100614 + 6100615.

It is an arithmetic number, because the mean of its divisors is an integer number (6100615).

Almost surely, 2^12201229 is an apocalyptic number.

It is an amenable number.

12201229 is a deficient number, since it is larger than the sum of its proper divisors (1).

12201229 is an equidigital number, since it uses as much as digits as its factorization.

12201229 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 12201229 is about 3493.0257657223. The cubic root of 12201229 is about 230.2154817369.

The spelling of 12201229 in words is "twelve million, two hundred one thousand, two hundred twenty-nine".