12213106 has 8 divisors (see below), whose sum is σ = 19397340. Its totient is φ = 5747328.

The previous prime is 12213079. The next prime is 12213109. The reversal of 12213106 is 60131221.

It can be written as a sum of positive squares in 2 ways, for example, as 10182481 + 2030625 = 3191^2 + 1425^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 12213106.

It is not an unprimeable number, because it can be changed into a prime (12213109) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 179571 + ... + 179638.

Almost surely, 2^12213106 is an apocalyptic number.

12213106 is a deficient number, since it is larger than the sum of its proper divisors (7184234).

12213106 is a wasteful number, since it uses less digits than its factorization.

12213106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 359228.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 12213106 is about 3494.7254541666. The cubic root of 12213106 is about 230.2901567978.

Adding to 12213106 its reverse (60131221), we get a palindrome (72344327).

The spelling of 12213106 in words is "twelve million, two hundred thirteen thousand, one hundred six".