12228090 has 32 divisors (see below), whose sum is σ = 33540480. Its totient is φ = 2794944.

The previous prime is 12228089. The next prime is 12228091. The reversal of 12228090 is 9082221.

It is an interprime number because it is at equal distance from previous prime (12228089) and next prime (12228091).

It is a self number, because there is not a number n which added to its sum of digits gives 12228090.

It is not an unprimeable number, because it can be changed into a prime (12228091) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28905 + ... + 29324.

It is an arithmetic number, because the mean of its divisors is an integer number (1048140).

Almost surely, 2^12228090 is an apocalyptic number.

12228090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12228090 is an abundant number, since it is smaller than the sum of its proper divisors (21312390).

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

12228090 is a wasteful number, since it uses less digits than its factorization.

12228090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58246.

The product of its (nonzero) digits is 576, while the sum is 24.

The square root of 12228090 is about 3496.8685991899. The cubic root of 12228090 is about 230.3842976736.

The spelling of 12228090 in words is "twelve million, two hundred twenty-eight thousand, ninety".