111120120112021 has 8 divisors (see below), whose sum is σ = 111128136837120. Its totient is φ = 111112103710608.

The previous prime is 111120120112019. The next prime is 111120120112049. The reversal of 111120120112021 is 120211021021111.

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 111120120112021 - 2¹ = 111120120112019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 111120120111986 and 111120120112004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111120120112121) 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, 1591282735 + ... + 1591352563.

It is an arithmetic number, because the mean of its divisors is an integer number (13891017104640).

Almost surely, 2^{111120120112021} is an apocalyptic number.

It is an amenable number.

111120120112021 is a deficient number, since it is larger than the sum of its proper divisors (8016725099).

111120120112021 is an equidigital number, since it uses as much as digits as its factorization.

111120120112021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161843.

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

Adding to 111120120112021 its reverse (120211021021111), we get a palindrome (231331141133132).

The spelling of 111120120112021 in words is "one hundred eleven trillion, one hundred twenty billion, one hundred twenty million, one hundred twelve thousand, twenty-one".