212201219 has 2 divisors, whose sum is σ = 212201220. Its totient is φ = 212201218.

The previous prime is 212201201. The next prime is 212201221. The reversal of 212201219 is 912102212.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212201219 is a prime.

It is a super-2 number, since 2×212201219² = 90058714690171922, which contains 22 as substring.

Together with 212201221, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 212201219.

It is not a weakly prime, because it can be changed into another prime (212201239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106100609 + 106100610.

It is an arithmetic number, because the mean of its divisors is an integer number (106100610).

Almost surely, 2^212201219 is an apocalyptic number.

212201219 is a deficient number, since it is larger than the sum of its proper divisors (1).

212201219 is an equidigital number, since it uses as much as digits as its factorization.

212201219 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 20.

The square root of 212201219 is about 14567.1280285443. The cubic root of 212201219 is about 596.4617862715.

The spelling of 212201219 in words is "two hundred twelve million, two hundred one thousand, two hundred nineteen".