111200201011121 has 4 divisors (see below), whose sum is σ = 111200277421092. Its totient is φ = 111200124601152.

The previous prime is 111200201011049. The next prime is 111200201011187. The reversal of 111200201011121 is 121110102002111.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 39827458810000 + 71372742201121 = 6310900^2 + 8448239^2 .

It is a cyclic number.

It is not a de Polignac number, because 111200201011121 - 2²⁶ = 111200133902257 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 111200201011096 and 111200201011105.

It is not an unprimeable number, because it can be changed into a prime (111200201011721) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35978780 + ... + 38947053.

It is an arithmetic number, because the mean of its divisors is an integer number (27800069355273).

Almost surely, 2^{111200201011121} is an apocalyptic number.

It is an amenable number.

111200201011121 is a deficient number, since it is larger than the sum of its proper divisors (76409971).

111200201011121 is an equidigital number, since it uses as much as digits as its factorization.

111200201011121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76409970.

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

Adding to 111200201011121 its reverse (121110102002111), we get a palindrome (232310303013232).

The spelling of 111200201011121 in words is "one hundred eleven trillion, two hundred billion, two hundred one million, eleven thousand, one hundred twenty-one".