211385219 has 2 divisors, whose sum is σ = 211385220. Its totient is φ = 211385218.

The previous prime is 211385189. The next prime is 211385221. The reversal of 211385219 is 912583112.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 211385219 - 2¹² = 211381123 is a prime.

It is a super-2 number, since 2×211385219² = 89367421623355922, which contains 22 as substring.

Together with 211385221, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (211385269) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105692609 + 105692610.

It is an arithmetic number, because the mean of its divisors is an integer number (105692610).

Almost surely, 2^211385219 is an apocalyptic number.

211385219 is a deficient number, since it is larger than the sum of its proper divisors (1).

211385219 is an equidigital number, since it uses as much as digits as its factorization.

211385219 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4320, while the sum is 32.

The square root of 211385219 is about 14539.0927846272. The cubic root of 211385219 is about 595.6962581159.

The spelling of 211385219 in words is "two hundred eleven million, three hundred eighty-five thousand, two hundred nineteen".