22221021167 has 2 divisors, whose sum is σ = 22221021168. Its totient is φ = 22221021166.

The previous prime is 22221021139. The next prime is 22221021191. The reversal of 22221021167 is 76112012222.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22221021167 - 2⁸ = 22221020911 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22221021967) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11110510583 + 11110510584.

It is an arithmetic number, because the mean of its divisors is an integer number (11110510584).

Almost surely, 2^22221021167 is an apocalyptic number.

22221021167 is a deficient number, since it is larger than the sum of its proper divisors (1).

22221021167 is an equidigital number, since it uses as much as digits as its factorization.

22221021167 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1344, while the sum is 26.

Adding to 22221021167 its reverse (76112012222), we get a palindrome (98333033389).

The spelling of 22221021167 in words is "twenty-two billion, two hundred twenty-one million, twenty-one thousand, one hundred sixty-seven".