111200121200201 has 4 divisors (see below), whose sum is σ = 121309223127504. Its totient is φ = 101091019272900.

The previous prime is 111200121200197. The next prime is 111200121200251. The reversal of 111200121200201 is 102002121002111.

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 111200121200201 - 2² = 111200121200197 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (111200121200251) 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, 5054550963635 + ... + 5054550963656.

It is an arithmetic number, because the mean of its divisors is an integer number (30327305781876).

Almost surely, 2^{111200121200201} is an apocalyptic number.

111200121200201 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

111200121200201 is a deficient number, since it is larger than the sum of its proper divisors (10109101927303).

111200121200201 is a wasteful number, since it uses less digits than its factorization.

111200121200201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10109101927302.

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

Adding to 111200121200201 its reverse (102002121002111), we get a palindrome (213202242202312).

The spelling of 111200121200201 in words is "one hundred eleven trillion, two hundred billion, one hundred twenty-one million, two hundred thousand, two hundred one".