9112021 has 4 divisors (see below), whose sum is σ = 9166752. Its totient is φ = 9057292.

The previous prime is 9111961. The next prime is 9112043. The reversal of 9112021 is 1202119.

9112021 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1202119 = 47 ⋅25577.

It is a cyclic number.

It is not a de Polignac number, because 9112021 - 2¹⁵ = 9079253 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 9111986 and 9112004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9112091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27115 + ... + 27448.

It is an arithmetic number, because the mean of its divisors is an integer number (2291688).

Almost surely, 2^9112021 is an apocalyptic number.

It is an amenable number.

9112021 is a deficient number, since it is larger than the sum of its proper divisors (54731).

9112021 is a wasteful number, since it uses less digits than its factorization.

9112021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54730.

The product of its (nonzero) digits is 36, while the sum is 16.

The square root of 9112021 is about 3018.6124295775. The cubic root of 9112021 is about 208.8678376607.

The spelling of 9112021 in words is "nine million, one hundred twelve thousand, twenty-one".