11112011122001 has 4 divisors (see below), whose sum is σ = 11161840768512. Its totient is φ = 11062181475492.

The previous prime is 11112011121997. The next prime is 11112011122057. The reversal of 11112011122001 is 10022111021111.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 11112011122001 - 2² = 11112011121997 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11112011122601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24914822921 + ... + 24914823366.

It is an arithmetic number, because the mean of its divisors is an integer number (2790460192128).

Almost surely, 2^{11112011122001} is an apocalyptic number.

It is an amenable number.

11112011122001 is a deficient number, since it is larger than the sum of its proper divisors (49829646511).

11112011122001 is an equidigital number, since it uses as much as digits as its factorization.

11112011122001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49829646510.

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

Adding to 11112011122001 its reverse (10022111021111), we get a palindrome (21134122143112).

The spelling of 11112011122001 in words is "eleven trillion, one hundred twelve billion, eleven million, one hundred twenty-two thousand, one".