16201219 has 2 divisors, whose sum is σ = 16201220. Its totient is φ = 16201218.

The previous prime is 16201201. The next prime is 16201247. The reversal of 16201219 is 91210261.

It is a weak prime.

It is an emirp because it is prime and its reverse (91210261) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16201219 - 2¹¹ = 16199171 is a prime.

It is a super-2 number, since 2×16201219² = 524958994171922, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 16201219.

It is not a weakly prime, because it can be changed into another prime (16201249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8100609 + 8100610.

It is an arithmetic number, because the mean of its divisors is an integer number (8100610).

Almost surely, 2^16201219 is an apocalyptic number.

16201219 is a deficient number, since it is larger than the sum of its proper divisors (1).

16201219 is an equidigital number, since it uses as much as digits as its factorization.

16201219 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 22.

The square root of 16201219 is about 4025.0737881435. The cubic root of 16201219 is about 253.0361460018.

The spelling of 16201219 in words is "sixteen million, two hundred one thousand, two hundred nineteen".