22441221071 has 2 divisors, whose sum is σ = 22441221072. Its totient is φ = 22441221070.

The previous prime is 22441220993. The next prime is 22441221073. The reversal of 22441221071 is 17012214422.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22441221071 - 2¹⁰ = 22441220047 is a prime.

Together with 22441221073, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22441221071.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22441221073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11220610535 + 11220610536.

It is an arithmetic number, because the mean of its divisors is an integer number (11220610536).

Almost surely, 2^22441221071 is an apocalyptic number.

22441221071 is a deficient number, since it is larger than the sum of its proper divisors (1).

22441221071 is an equidigital number, since it uses as much as digits as its factorization.

22441221071 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1792, while the sum is 26.

Adding to 22441221071 its reverse (17012214422), we get a palindrome (39453435493).

The spelling of 22441221071 in words is "twenty-two billion, four hundred forty-one million, two hundred twenty-one thousand, seventy-one".