11111210002271 has 2 divisors, whose sum is σ = 11111210002272. Its totient is φ = 11111210002270.

The previous prime is 11111210002253. The next prime is 11111210002279. The reversal of 11111210002271 is 17220001211111.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11111210002271 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11111210002279) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5555605001135 + 5555605001136.

It is an arithmetic number, because the mean of its divisors is an integer number (5555605001136).

Almost surely, 2^{11111210002271} is an apocalyptic number.

11111210002271 is a deficient number, since it is larger than the sum of its proper divisors (1).

11111210002271 is an equidigital number, since it uses as much as digits as its factorization.

11111210002271 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 56, while the sum is 20.

Adding to 11111210002271 its reverse (17220001211111), we get a palindrome (28331211213382).

The spelling of 11111210002271 in words is "eleven trillion, one hundred eleven billion, two hundred ten million, two thousand, two hundred seventy-one".