22221122210071 has 2 divisors, whose sum is σ = 22221122210072. Its totient is φ = 22221122210070.

The previous prime is 22221122210069. The next prime is 22221122210107. The reversal of 22221122210071 is 17001222112222.

Together with next prime (22221122210107) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22221122210071 - 2¹ = 22221122210069 is a prime.

Together with 22221122210069, 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 (22521122210071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11110561105035 + 11110561105036.

It is an arithmetic number, because the mean of its divisors is an integer number (11110561105036).

Almost surely, 2^{22221122210071} is an apocalyptic number.

22221122210071 is a deficient number, since it is larger than the sum of its proper divisors (1).

22221122210071 is an equidigital number, since it uses as much as digits as its factorization.

22221122210071 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 896, while the sum is 25.

Adding to 22221122210071 its reverse (17001222112222), we get a palindrome (39222344322293).

The spelling of 22221122210071 in words is "twenty-two trillion, two hundred twenty-one billion, one hundred twenty-two million, two hundred ten thousand, seventy-one".