111020201111201 has 4 divisors (see below), whose sum is σ = 111022867280004. Its totient is φ = 111017534942400.

The previous prime is 111020201111167. The next prime is 111020201111219. The reversal of 111020201111201 is 102111102020111.

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 93270705720976 + 17749495390225 = 9657676^2 + 4213015^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111020201111201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111020201110201) 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, 1333021940 + ... + 1333105221.

It is an arithmetic number, because the mean of its divisors is an integer number (27755716820001).

Almost surely, 2^{111020201111201} is an apocalyptic number.

It is an amenable number.

111020201111201 is a deficient number, since it is larger than the sum of its proper divisors (2666168803).

111020201111201 is an equidigital number, since it uses as much as digits as its factorization.

111020201111201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2666168802.

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

Adding to 111020201111201 its reverse (102111102020111), we get a palindrome (213131303131312).

The spelling of 111020201111201 in words is "one hundred eleven trillion, twenty billion, two hundred one million, one hundred eleven thousand, two hundred one".