11211210000071 has 2 divisors, whose sum is σ = 11211210000072. Its totient is φ = 11211210000070.

The previous prime is 11211210000019. The next prime is 11211210000103. The reversal of 11211210000071 is 17000001211211.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11211210000071 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11211210000371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5605605000035 + 5605605000036.

It is an arithmetic number, because the mean of its divisors is an integer number (5605605000036).

Almost surely, 2^{11211210000071} is an apocalyptic number.

11211210000071 is a deficient number, since it is larger than the sum of its proper divisors (1).

11211210000071 is an equidigital number, since it uses as much as digits as its factorization.

11211210000071 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 17.

Adding to 11211210000071 its reverse (17000001211211), we get a palindrome (28211211211282).

The spelling of 11211210000071 in words is "eleven trillion, two hundred eleven billion, two hundred ten million, seventy-one", and thus it is an aban number.