2219216171 has 2 divisors, whose sum is σ = 2219216172. Its totient is φ = 2219216170.

The previous prime is 2219216141. The next prime is 2219216179. The reversal of 2219216171 is 1716129122.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2219216171 - 2²² = 2215021867 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (2219216179) 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, 1109608085 + 1109608086.

It is an arithmetic number, because the mean of its divisors is an integer number (1109608086).

Almost surely, 2^2219216171 is an apocalyptic number.

2219216171 is a deficient number, since it is larger than the sum of its proper divisors (1).

2219216171 is an equidigital number, since it uses as much as digits as its factorization.

2219216171 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3024, while the sum is 32.

The square root of 2219216171 is about 47108.5573011953. The cubic root of 2219216171 is about 1304.3672002365.

The spelling of 2219216171 in words is "two billion, two hundred nineteen million, two hundred sixteen thousand, one hundred seventy-one".