11101122211001 has 2 divisors, whose sum is σ = 11101122211002. Its totient is φ = 11101122211000.

The previous prime is 11101122210989. The next prime is 11101122211027. The reversal of 11101122211001 is 10011222110111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10987229460601 + 113892750400 = 3314699^2 + 337480^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11101122211001 is a prime.

It is not a weakly prime, because it can be changed into another prime (11101122210001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5550561105500 + 5550561105501.

It is an arithmetic number, because the mean of its divisors is an integer number (5550561105501).

Almost surely, 2^{11101122211001} is an apocalyptic number.

It is an amenable number.

11101122211001 is a deficient number, since it is larger than the sum of its proper divisors (1).

11101122211001 is an equidigital number, since it uses as much as digits as its factorization.

11101122211001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 11101122211001 its reverse (10011222110111), we get a palindrome (21112344321112).

The spelling of 11101122211001 in words is "eleven trillion, one hundred one billion, one hundred twenty-two million, two hundred eleven thousand, one".