210220019 has 2 divisors, whose sum is σ = 210220020. Its totient is φ = 210220018.

The previous prime is 210220007. The next prime is 210220033. The reversal of 210220019 is 910022012.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-210220019 is a prime.

It is a super-2 number, since 2×210220019² = 88384912776720722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 210219979 and 210220006.

It is not a weakly prime, because it can be changed into another prime (210220099) 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, 105110009 + 105110010.

It is an arithmetic number, because the mean of its divisors is an integer number (105110010).

Almost surely, 2^210220019 is an apocalyptic number.

210220019 is a deficient number, since it is larger than the sum of its proper divisors (1).

210220019 is an equidigital number, since it uses as much as digits as its factorization.

210220019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 17.

The square root of 210220019 is about 14498.9661355560. The cubic root of 210220019 is about 594.5997062774.

The spelling of 210220019 in words is "two hundred ten million, two hundred twenty thousand, nineteen".