11221320167 has 2 divisors, whose sum is σ = 11221320168. Its totient is φ = 11221320166.

The previous prime is 11221320163. The next prime is 11221320191. The reversal of 11221320167 is 76102312211.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11221320167 - 2² = 11221320163 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11221320163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5610660083 + 5610660084.

It is an arithmetic number, because the mean of its divisors is an integer number (5610660084).

Almost surely, 2^11221320167 is an apocalyptic number.

11221320167 is a deficient number, since it is larger than the sum of its proper divisors (1).

11221320167 is an equidigital number, since it uses as much as digits as its factorization.

11221320167 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1008, while the sum is 26.

Adding to 11221320167 its reverse (76102312211), we get a palindrome (87323632378).

The spelling of 11221320167 in words is "eleven billion, two hundred twenty-one million, three hundred twenty thousand, one hundred sixty-seven".