12226990 has 16 divisors (see below), whose sum is σ = 22048848. Its totient is φ = 4881856.

The previous prime is 12226967. The next prime is 12226993. The reversal of 12226990 is 9962221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12226993) 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 7 ways as a sum of consecutive naturals, for example, 8889 + ... + 10171.

It is an arithmetic number, because the mean of its divisors is an integer number (1378053).

Almost surely, 2^12226990 is an apocalyptic number.

12226990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12226990 is a deficient number, since it is larger than the sum of its proper divisors (9821858).

12226990 is a wasteful number, since it uses less digits than its factorization.

12226990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2243.

The product of its (nonzero) digits is 3888, while the sum is 31.

The square root of 12226990 is about 3496.7113120760. The cubic root of 12226990 is about 230.3773892541.

The spelling of 12226990 in words is "twelve million, two hundred twenty-six thousand, nine hundred ninety".