11011220071 has 2 divisors, whose sum is σ = 11011220072. Its totient is φ = 11011220070.

The previous prime is 11011220041. The next prime is 11011220111. The reversal of 11011220071 is 17002211011.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11011220071 - 2¹³ = 11011211879 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11011220041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5505610035 + 5505610036.

It is an arithmetic number, because the mean of its divisors is an integer number (5505610036).

Almost surely, 2^11011220071 is an apocalyptic number.

11011220071 is a deficient number, since it is larger than the sum of its proper divisors (1).

11011220071 is an equidigital number, since it uses as much as digits as its factorization.

11011220071 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 28, while the sum is 16.

Adding to 11011220071 its reverse (17002211011), we get a palindrome (28013431082).

The spelling of 11011220071 in words is "eleven billion, eleven million, two hundred twenty thousand, seventy-one".