111110212102021 has 8 divisors (see below), whose sum is σ = 122411250777888. Its totient is φ = 100009191810000.

The previous prime is 111110212101901. The next prime is 111110212102037. The reversal of 111110212102021 is 120201212011111.

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

It is not a de Polignac number, because 111110212102021 - 2⁷ = 111110212101893 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 111110212101986 and 111110212102004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111110212102321) 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, 50004594795 + ... + 50004597016.

It is an arithmetic number, because the mean of its divisors is an integer number (15301406347236).

Almost surely, 2^{111110212102021} is an apocalyptic number.

111110212102021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

111110212102021 is a deficient number, since it is larger than the sum of its proper divisors (11301038675867).

111110212102021 is a wasteful number, since it uses less digits than its factorization.

111110212102021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100009191923.

The product of its (nonzero) digits is 16, while the sum is 16.

Adding to 111110212102021 its reverse (120201212011111), we get a palindrome (231311424113132).

The spelling of 111110212102021 in words is "one hundred eleven trillion, one hundred ten billion, two hundred twelve million, one hundred two thousand, twenty-one".