11112222100001 has 12 divisors (see below), whose sum is σ = 12227727436176. Its totient is φ = 10090882152120.

The previous prime is 11112222099967. The next prime is 11112222100019. The reversal of 11112222100001 is 10000122221111.

It is a de Polignac number, because none of the positive numbers 2^k-11112222100001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11112222100901) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 50516795 + ... + 50736288.

It is an arithmetic number, because the mean of its divisors is an integer number (1018977286348).

Almost surely, 2^{11112222100001} is an apocalyptic number.

11112222100001 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11112222100001 is a deficient number, since it is larger than the sum of its proper divisors (1115505336175).

11112222100001 is a wasteful number, since it uses less digits than its factorization.

11112222100001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101254012 (or 101254001 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 11112222100001 its reverse (10000122221111), we get a palindrome (21112344321112).

The spelling of 11112222100001 in words is "eleven trillion, one hundred twelve billion, two hundred twenty-two million, one hundred thousand, one".