12210487 has 2 divisors, whose sum is σ = 12210488. Its totient is φ = 12210486.

The previous prime is 12210467. The next prime is 12210503. The reversal of 12210487 is 78401221.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (78401221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12210487 - 2¹¹ = 12208439 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12210467) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6105243 + 6105244.

It is an arithmetic number, because the mean of its divisors is an integer number (6105244).

Almost surely, 2^12210487 is an apocalyptic number.

12210487 is a deficient number, since it is larger than the sum of its proper divisors (1).

12210487 is an equidigital number, since it uses as much as digits as its factorization.

12210487 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 896, while the sum is 25.

The square root of 12210487 is about 3494.3507265299. The cubic root of 12210487 is about 230.2736943451.

It can be divided in two parts, 122 and 10487, that added together give a square (10609 = 103²).

The spelling of 12210487 in words is "twelve million, two hundred ten thousand, four hundred eighty-seven".