12210899 has 4 divisors (see below), whose sum is σ = 12259800. Its totient is φ = 12162000.

The previous prime is 12210883. The next prime is 12210937. The reversal of 12210899 is 99801221.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12210899 - 2⁴ = 12210883 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12210599) 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 in 3 ways as a sum of consecutive naturals, for example, 24074 + ... + 24575.

It is an arithmetic number, because the mean of its divisors is an integer number (3064950).

Almost surely, 2^12210899 is an apocalyptic number.

12210899 is a deficient number, since it is larger than the sum of its proper divisors (48901).

12210899 is an equidigital number, since it uses as much as digits as its factorization.

12210899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48900.

The product of its (nonzero) digits is 2592, while the sum is 32.

The square root of 12210899 is about 3494.4096783291. The cubic root of 12210899 is about 230.2762842417.

The spelling of 12210899 in words is "twelve million, two hundred ten thousand, eight hundred ninety-nine".