12212107 has 2 divisors, whose sum is σ = 12212108. Its totient is φ = 12212106.

The previous prime is 12212087. The next prime is 12212111. The reversal of 12212107 is 70121221.

It is a strong prime.

It is an emirp because it is prime and its reverse (70121221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12212107 - 2¹¹ = 12210059 is a prime.

It is not a weakly prime, because it can be changed into another prime (12212147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6106053 + 6106054.

It is an arithmetic number, because the mean of its divisors is an integer number (6106054).

Almost surely, 2^12212107 is an apocalyptic number.

12212107 is a deficient number, since it is larger than the sum of its proper divisors (1).

12212107 is an equidigital number, since it uses as much as digits as its factorization.

12212107 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 56, while the sum is 16.

The square root of 12212107 is about 3494.5825215611. The cubic root of 12212107 is about 230.2838775832.

Adding to 12212107 its reverse (70121221), we get a palindrome (82333328).

The spelling of 12212107 in words is "twelve million, two hundred twelve thousand, one hundred seven".