12225106 has 4 divisors (see below), whose sum is σ = 18337662. Its totient is φ = 6112552.

The previous prime is 12225097. The next prime is 12225107. The reversal of 12225106 is 60152221.

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., 12187081 + 38025 = 3491^2 + 195^2 .

It is a super-2 number, since 2×12225106² = 298906433422472, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12225107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3056275 + ... + 3056278.

Almost surely, 2^12225106 is an apocalyptic number.

12225106 is a deficient number, since it is larger than the sum of its proper divisors (6112556).

12225106 is an equidigital number, since it uses as much as digits as its factorization.

12225106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6112555.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 12225106 is about 3496.4419057093. The cubic root of 12225106 is about 230.3655560529.

Adding to 12225106 its reverse (60152221), we get a palindrome (72377327).

It can be divided in two parts, 1222 and 5106, that added together give a triangular number (6328 = T₁₁₂).

The spelling of 12225106 in words is "twelve million, two hundred twenty-five thousand, one hundred six".