12121298 has 8 divisors (see below), whose sum is σ = 20779392. Its totient is φ = 5194836.

The previous prime is 12121283. The next prime is 12121301. The reversal of 12121298 is 89212121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an alternating number because its digits alternate between odd and even.

It is an unprimeable number.

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, 432890 + ... + 432917.

It is an arithmetic number, because the mean of its divisors is an integer number (2597424).

Almost surely, 2^12121298 is an apocalyptic number.

12121298 is a deficient number, since it is larger than the sum of its proper divisors (8658094).

12121298 is an equidigital number, since it uses as much as digits as its factorization.

12121298 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 865816.

The product of its digits is 576, while the sum is 26.

The square root of 12121298 is about 3481.5654524940. The cubic root of 12121298 is about 229.7116613607.

The spelling of 12121298 in words is "twelve million, one hundred twenty-one thousand, two hundred ninety-eight".