12213199 has 2 divisors, whose sum is σ = 12213200. Its totient is φ = 12213198.

The previous prime is 12213197. The next prime is 12213221. The reversal of 12213199 is 99131221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12213199 - 2¹ = 12213197 is a prime.

Together with 12213197, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12213193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6106599 + 6106600.

It is an arithmetic number, because the mean of its divisors is an integer number (6106600).

Almost surely, 2^12213199 is an apocalyptic number.

12213199 is a deficient number, since it is larger than the sum of its proper divisors (1).

12213199 is an equidigital number, since it uses as much as digits as its factorization.

12213199 is an evil number, because the sum of its binary digits is even.

The product of its digits is 972, while the sum is 28.

The square root of 12213199 is about 3494.7387599075. The cubic root of 12213199 is about 230.2907413318.

The spelling of 12213199 in words is "twelve million, two hundred thirteen thousand, one hundred ninety-nine".