12212699 has 2 divisors, whose sum is σ = 12212700. Its totient is φ = 12212698.

The previous prime is 12212677. The next prime is 12212713. The reversal of 12212699 is 99621221.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12212699 is a prime.

It is a Sophie Germain prime.

It is a plaindrome in base 15.

It is not a weakly prime, because it can be changed into another prime (12212399) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6106349 + 6106350.

It is an arithmetic number, because the mean of its divisors is an integer number (6106350).

Almost surely, 2^12212699 is an apocalyptic number.

12212699 is a deficient number, since it is larger than the sum of its proper divisors (1).

12212699 is an equidigital number, since it uses as much as digits as its factorization.

12212699 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3888, while the sum is 32.

The square root of 12212699 is about 3494.6672230700. The cubic root of 12212699 is about 230.2875986406.

It can be divided in two parts, 122 and 12699, that added together give a palindrome (12821).

The spelling of 12212699 in words is "twelve million, two hundred twelve thousand, six hundred ninety-nine".