111102112021001 has 8 divisors (see below), whose sum is σ = 114933529967880. Its totient is φ = 107270714783232.

The previous prime is 111102112020917. The next prime is 111102112021003. The reversal of 111102112021001 is 100120211201111.

It can be written as a sum of positive squares in 4 ways, for example, as 10524801198025 + 100577310822976 = 3244195^2 + 10028824^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 111102112021001 - 2²⁶ = 111102044912137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111102112021003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6158201 + ... + 16128473.

It is an arithmetic number, because the mean of its divisors is an integer number (14366691245985).

Almost surely, 2^{111102112021001} is an apocalyptic number.

It is an amenable number.

111102112021001 is a deficient number, since it is larger than the sum of its proper divisors (3831417946879).

111102112021001 is an equidigital number, since it uses as much as digits as its factorization.

111102112021001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10354555.

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

Adding to 111102112021001 its reverse (100120211201111), we get a palindrome (211222323222112).

The spelling of 111102112021001 in words is "one hundred eleven trillion, one hundred two billion, one hundred twelve million, twenty-one thousand, one".