221002211210071 has 2 divisors, whose sum is σ = 221002211210072. Its totient is φ = 221002211210070.

The previous prime is 221002211210069. The next prime is 221002211210197. The reversal of 221002211210071 is 170012112200122.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 221002211210071 - 2¹ = 221002211210069 is a prime.

Together with 221002211210069, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (221002211211071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110501105605035 + 110501105605036.

It is an arithmetic number, because the mean of its divisors is an integer number (110501105605036).

Almost surely, 2^{221002211210071} is an apocalyptic number.

221002211210071 is a deficient number, since it is larger than the sum of its proper divisors (1).

221002211210071 is an equidigital number, since it uses as much as digits as its factorization.

221002211210071 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 224, while the sum is 22.

Adding to 221002211210071 its reverse (170012112200122), we get a palindrome (391014323410193).

The spelling of 221002211210071 in words is "two hundred twenty-one trillion, two billion, two hundred eleven million, two hundred ten thousand, seventy-one".