2221659071 has 2 divisors, whose sum is σ = 2221659072. Its totient is φ = 2221659070.

The previous prime is 2221659047. The next prime is 2221659073. The reversal of 2221659071 is 1709561222.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2221659071 - 2⁶ = 2221659007 is a prime.

Together with 2221659073, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2221659073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1110829535 + 1110829536.

It is an arithmetic number, because the mean of its divisors is an integer number (1110829536).

Almost surely, 2^2221659071 is an apocalyptic number.

2221659071 is a deficient number, since it is larger than the sum of its proper divisors (1).

2221659071 is an equidigital number, since it uses as much as digits as its factorization.

2221659071 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15120, while the sum is 35.

The square root of 2221659071 is about 47134.4785799101. The cubic root of 2221659071 is about 1304.8456379518.

The spelling of 2221659071 in words is "two billion, two hundred twenty-one million, six hundred fifty-nine thousand, seventy-one".