111120112010021 has 8 divisors (see below), whose sum is σ = 115956025088640. Its totient is φ = 106284582586512.

The previous prime is 111120112010009. The next prime is 111120112010041. The reversal of 111120112010021 is 120010211021111.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111120112010021 is a prime.

It is a super-2 number, since 2×111120112010021² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 111120112009978 and 111120112010005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111120112010041) 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, 95321825 + ... + 96480518.

It is an arithmetic number, because the mean of its divisors is an integer number (14494503136080).

Almost surely, 2^{111120112010021} is an apocalyptic number.

It is an amenable number.

111120112010021 is a deficient number, since it is larger than the sum of its proper divisors (4835913078619).

111120112010021 is a wasteful number, since it uses less digits than its factorization.

111120112010021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191827555.

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

Adding to 111120112010021 its reverse (120010211021111), we get a palindrome (231130323031132).

The spelling of 111120112010021 in words is "one hundred eleven trillion, one hundred twenty billion, one hundred twelve million, ten thousand, twenty-one".