12022229 has 2 divisors, whose sum is σ = 12022230. Its totient is φ = 12022228.

The previous prime is 12022223. The next prime is 12022237. The reversal of 12022229 is 92222021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9012004 + 3010225 = 3002^2 + 1735^2 .

It is an emirp because it is prime and its reverse (92222021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12022229 - 2⁸ = 12021973 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12022229.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12022223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6011114 + 6011115.

It is an arithmetic number, because the mean of its divisors is an integer number (6011115).

Almost surely, 2^12022229 is an apocalyptic number.

It is an amenable number.

12022229 is a deficient number, since it is larger than the sum of its proper divisors (1).

12022229 is an equidigital number, since it uses as much as digits as its factorization.

12022229 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 12022229 is about 3467.3086104355. The cubic root of 12022229 is about 229.0841271603.

The spelling of 12022229 in words is "twelve million, twenty-two thousand, two hundred twenty-nine".