219217092019 has 2 divisors, whose sum is σ = 219217092020. Its totient is φ = 219217092018.

The previous prime is 219217091923. The next prime is 219217092041. The reversal of 219217092019 is 910290712912.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 219217092019 - 2⁹ = 219217091507 is a prime.

It is a super-2 number, since 2×219217092019² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (219217092079) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 109608546009 + 109608546010.

It is an arithmetic number, because the mean of its divisors is an integer number (109608546010).

Almost surely, 2^219217092019 is an apocalyptic number.

219217092019 is a deficient number, since it is larger than the sum of its proper divisors (1).

219217092019 is an equidigital number, since it uses as much as digits as its factorization.

219217092019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 40824, while the sum is 43.

The spelling of 219217092019 in words is "two hundred nineteen billion, two hundred seventeen million, ninety-two thousand, nineteen".