12210449 has 2 divisors, whose sum is σ = 12210450. Its totient is φ = 12210448.

The previous prime is 12210389. The next prime is 12210461. The reversal of 12210449 is 94401221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9042049 + 3168400 = 3007^2 + 1780^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12210449 is a prime.

It is a Chen prime.

It is equal to p₈₀₀₉₂₄ and since 12210449 and 800924 have the same sum of digits, it is a Honaker prime.

It is a nialpdrome in base 16.

It is not a weakly prime, because it can be changed into another prime (12210349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6105224 + 6105225.

It is an arithmetic number, because the mean of its divisors is an integer number (6105225).

Almost surely, 2^12210449 is an apocalyptic number.

It is an amenable number.

12210449 is a deficient number, since it is larger than the sum of its proper divisors (1).

12210449 is an equidigital number, since it uses as much as digits as its factorization.

12210449 is an evil number, because the sum of its binary digits is even.

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

The square root of 12210449 is about 3494.3452891779. The cubic root of 12210449 is about 230.2734554682.

The spelling of 12210449 in words is "twelve million, two hundred ten thousand, four hundred forty-nine".