111101111020201 has 4 divisors (see below), whose sum is σ = 111132223068304. Its totient is φ = 111069998972100.

The previous prime is 111101111020189. The next prime is 111101111020217. The reversal of 111101111020201 is 102020111101111.

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 111101111020201 - 2¹⁷ = 111101110889129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111101111060201) 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, 15556018695 + ... + 15556025836.

It is an arithmetic number, because the mean of its divisors is an integer number (27783055767076).

Almost surely, 2^{111101111020201} is an apocalyptic number.

It is an amenable number.

111101111020201 is a deficient number, since it is larger than the sum of its proper divisors (31112048103).

111101111020201 is an equidigital number, since it uses as much as digits as its factorization.

111101111020201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31112048102.

The product of its (nonzero) digits is 4, while the sum is 13.

Adding to 111101111020201 its reverse (102020111101111), we get a palindrome (213121222121312).

The spelling of 111101111020201 in words is "one hundred eleven trillion, one hundred one billion, one hundred eleven million, twenty thousand, two hundred one".