12222490 has 32 divisors (see below), whose sum is σ = 26625024. Its totient is φ = 3943680.

The previous prime is 12222461. The next prime is 12222517. The reversal of 12222490 is 9422221.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3946 + ... + 6325.

It is an arithmetic number, because the mean of its divisors is an integer number (832032).

Almost surely, 2^12222490 is an apocalyptic number.

12222490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12222490 is an abundant number, since it is smaller than the sum of its proper divisors (14402534).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12222490 is a wasteful number, since it uses less digits than its factorization.

12222490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10302.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 12222490 is about 3496.0677911047. The cubic root of 12222490 is about 230.3491232224.

The spelling of 12222490 in words is "twelve million, two hundred twenty-two thousand, four hundred ninety".