12211107 has 8 divisors (see below), whose sum is σ = 16307280. Its totient is φ = 8127840.

The previous prime is 12211103. The next prime is 12211123. The reversal of 12211107 is 70111221.

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

It is not a de Polignac number, because 12211107 - 2² = 12211103 is a prime.

It is a super-2 number, since 2×12211107² = 298222268330898, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12211103) 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, 744 + ... + 4997.

It is an arithmetic number, because the mean of its divisors is an integer number (2038410).

Almost surely, 2^12211107 is an apocalyptic number.

12211107 is a deficient number, since it is larger than the sum of its proper divisors (4096173).

12211107 is an equidigital number, since it uses as much as digits as its factorization.

12211107 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6453.

The product of its (nonzero) digits is 28, while the sum is 15.

The square root of 12211107 is about 3494.4394400247. The cubic root of 12211107 is about 230.2775917401.

Adding to 12211107 its reverse (70111221), we get a palindrome (82322328).

The spelling of 12211107 in words is "twelve million, two hundred eleven thousand, one hundred seven".