12226906 has 4 divisors (see below), whose sum is σ = 18340362. Its totient is φ = 6113452.

The previous prime is 12226873. The next prime is 12226933. The reversal of 12226906 is 60962221.

12226906 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in only one way, i.e., 12215025 + 11881 = 3495^2 + 109^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3056725 + ... + 3056728.

Almost surely, 2^12226906 is an apocalyptic number.

12226906 is a deficient number, since it is larger than the sum of its proper divisors (6113456).

12226906 is an equidigital number, since it uses as much as digits as its factorization.

12226906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6113455.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 12226906 is about 3496.6993007692. The cubic root of 12226906 is about 230.3768616850.

It can be divided in two parts, 1222 and 6906, that added together give a triangular number (8128 = T₁₂₇).

The spelling of 12226906 in words is "twelve million, two hundred twenty-six thousand, nine hundred six".