11223021071 has 2 divisors, whose sum is σ = 11223021072. Its totient is φ = 11223021070.

The previous prime is 11223021037. The next prime is 11223021163. The reversal of 11223021071 is 17012032211.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11223021071 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11223029071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5611510535 + 5611510536.

It is an arithmetic number, because the mean of its divisors is an integer number (5611510536).

Almost surely, 2^11223021071 is an apocalyptic number.

11223021071 is a deficient number, since it is larger than the sum of its proper divisors (1).

11223021071 is an equidigital number, since it uses as much as digits as its factorization.

11223021071 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 168, while the sum is 20.

Adding to 11223021071 its reverse (17012032211), we get a palindrome (28235053282).

The spelling of 11223021071 in words is "eleven billion, two hundred twenty-three million, twenty-one thousand, seventy-one".