111020101201 has 4 divisors (see below), whose sum is σ = 111056612004. Its totient is φ = 110983590400.

The previous prime is 111020101189. The next prime is 111020101207. The reversal of 111020101201 is 102101020111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 102101020111 = 173 ⋅590179307.

It can be written as a sum of positive squares in 2 ways, for example, as 96844817601 + 14175283600 = 311199^2 + 119060^2 .

It is a cyclic number.

It is not a de Polignac number, because 111020101201 - 2³⁵ = 76660362833 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111020101207) 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, 18250840 + ... + 18256921.

It is an arithmetic number, because the mean of its divisors is an integer number (27764153001).

Almost surely, 2^111020101201 is an apocalyptic number.

It is an amenable number.

111020101201 is a deficient number, since it is larger than the sum of its proper divisors (36510803).

111020101201 is an equidigital number, since it uses as much as digits as its factorization.

111020101201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36510802.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 111020101201 its reverse (102101020111), we get a palindrome (213121121312).

The spelling of 111020101201 in words is "one hundred eleven billion, twenty million, one hundred one thousand, two hundred one".