111202100110001 has 4 divisors (see below), whose sum is σ = 111766577775732. Its totient is φ = 110637622444272.

The previous prime is 111202100109959. The next prime is 111202100110051. The reversal of 111202100110001 is 100011001202111.

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 79215429093025 + 31986671016976 = 8900305^2 + 5655676^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111202100110001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111202100110051) 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, 282238832570 + ... + 282238832963.

It is an arithmetic number, because the mean of its divisors is an integer number (27941644443933).

Almost surely, 2^{111202100110001} is an apocalyptic number.

It is an amenable number.

111202100110001 is a deficient number, since it is larger than the sum of its proper divisors (564477665731).

111202100110001 is an equidigital number, since it uses as much as digits as its factorization.

111202100110001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 564477665730.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 111202100110001 its reverse (100011001202111), we get a palindrome (211213101312112).

The spelling of 111202100110001 in words is "one hundred eleven trillion, two hundred two billion, one hundred million, one hundred ten thousand, one".