22221020071 has 2 divisors, whose sum is σ = 22221020072. Its totient is φ = 22221020070.

The previous prime is 22221020051. The next prime is 22221020113. The reversal of 22221020071 is 17002012222.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22221020071 - 2¹⁵ = 22220987303 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22221020051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11110510035 + 11110510036.

It is an arithmetic number, because the mean of its divisors is an integer number (11110510036).

Almost surely, 2^22221020071 is an apocalyptic number.

22221020071 is a deficient number, since it is larger than the sum of its proper divisors (1).

22221020071 is an equidigital number, since it uses as much as digits as its factorization.

22221020071 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 224, while the sum is 19.

Adding to 22221020071 its reverse (17002012222), we get a palindrome (39223032293).

The spelling of 22221020071 in words is "twenty-two billion, two hundred twenty-one million, twenty thousand, seventy-one".