112021 has 8 divisors (see below), whose sum is σ = 137984. Its totient is φ = 88560.

The previous prime is 112019. The next prime is 112031. The reversal of 112021 is 120211.

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 112021 - 2¹ = 112019 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (7).

It is a nialpdrome in base 7.

It is a junction number, because it is equal to n+sod(n) for n = 111995 and 112013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112031) 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, 525 + ... + 706.

It is an arithmetic number, because the mean of its divisors is an integer number (17248).

2¹¹²⁰²¹ is an apocalyptic number.

It is an amenable number.

112021 is a deficient number, since it is larger than the sum of its proper divisors (25963).

112021 is a wasteful number, since it uses less digits than its factorization.

112021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1251.

The product of its (nonzero) digits is 4, while the sum is 7.

The square root of 112021 is about 334.6953838941. The cubic root of 112021 is about 48.2058577731.

Adding to 112021 its reverse (120211), we get a palindrome (232232).

The spelling of 112021 in words is "one hundred twelve thousand, twenty-one", and thus it is an iban number.