111121012200001 has 4 divisors (see below), whose sum is σ = 111802736201392. Its totient is φ = 110439288198612.

The previous prime is 111121012199959. The next prime is 111121012200013. The reversal of 111121012200001 is 100002210121111.

It is a happy number.

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 111121012200001 - 2⁹ = 111121012199489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111121012200041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 340862000451 + ... + 340862000776.

It is an arithmetic number, because the mean of its divisors is an integer number (27950684050348).

Almost surely, 2^{111121012200001} is an apocalyptic number.

It is an amenable number.

111121012200001 is a deficient number, since it is larger than the sum of its proper divisors (681724001391).

111121012200001 is an equidigital number, since it uses as much as digits as its factorization.

111121012200001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 681724001390.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 111121012200001 its reverse (100002210121111), we get a palindrome (211123222321112).

The spelling of 111121012200001 in words is "one hundred eleven trillion, one hundred twenty-one billion, twelve million, two hundred thousand, one".