11112201111121 has 16 divisors (see below), whose sum is σ = 12760650302400. Its totient is φ = 9570145766400.

The previous prime is 11112201111061. The next prime is 11112201111139. The reversal of 11112201111121 is 12111110221111.

It is a cyclic number.

It is not a de Polignac number, because 11112201111121 - 2⁹ = 11112201110609 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11112201111095 and 11112201111104.

It is not an unprimeable number, because it can be changed into a prime (11112201111721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12038281 + ... + 12928441.

It is an arithmetic number, because the mean of its divisors is an integer number (797540643900).

Almost surely, 2^{11112201111121} is an apocalyptic number.

11112201111121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11112201111121 is a deficient number, since it is larger than the sum of its proper divisors (1648449191279).

11112201111121 is a wasteful number, since it uses less digits than its factorization.

11112201111121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 949920.

The product of its (nonzero) digits is 8, while the sum is 16.

Adding to 11112201111121 its reverse (12111110221111), we get a palindrome (23223311332232).

The spelling of 11112201111121 in words is "eleven trillion, one hundred twelve billion, two hundred one million, one hundred eleven thousand, one hundred twenty-one".