212192219 has 2 divisors, whose sum is σ = 212192220. Its totient is φ = 212192218.

The previous prime is 212192207. The next prime is 212192243. The reversal of 212192219 is 912291212.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 212192219 - 2⁴ = 212192203 is a prime.

It is a super-2 number, since 2×212192219² = 90051075608287922, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 212192191 and 212192200.

It is not a weakly prime, because it can be changed into another prime (212192719) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106096109 + 106096110.

It is an arithmetic number, because the mean of its divisors is an integer number (106096110).

Almost surely, 2^212192219 is an apocalyptic number.

212192219 is a deficient number, since it is larger than the sum of its proper divisors (1).

212192219 is an equidigital number, since it uses as much as digits as its factorization.

212192219 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1296, while the sum is 29.

The square root of 212192219 is about 14566.8191105677. The cubic root of 212192219 is about 596.4533536590.

The spelling of 212192219 in words is "two hundred twelve million, one hundred ninety-two thousand, two hundred nineteen".