12224129 has 2 divisors, whose sum is σ = 12224130. Its totient is φ = 12224128.

The previous prime is 12224117. The next prime is 12224153. The reversal of 12224129 is 92142221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9241600 + 2982529 = 3040^2 + 1727^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12224129 is a prime.

It is not a weakly prime, because it can be changed into another prime (12224159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6112064 + 6112065.

It is an arithmetic number, because the mean of its divisors is an integer number (6112065).

Almost surely, 2^12224129 is an apocalyptic number.

It is an amenable number.

12224129 is a deficient number, since it is larger than the sum of its proper divisors (1).

12224129 is an equidigital number, since it uses as much as digits as its factorization.

12224129 is an evil number, because the sum of its binary digits is even.

The product of its digits is 576, while the sum is 23.

The square root of 12224129 is about 3496.3021894567. The cubic root of 12224129 is about 230.3594191424.

The spelling of 12224129 in words is "twelve million, two hundred twenty-four thousand, one hundred twenty-nine".