8112121 has 4 divisors (see below), whose sum is σ = 8122192. Its totient is φ = 8102052.

The previous prime is 8112119. The next prime is 8112133. The reversal of 8112121 is 1212118.

8112121 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: 1212118 = 2 ⋅606059.

It is a cyclic number.

It is not a de Polignac number, because 8112121 - 2¹ = 8112119 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 8112095 and 8112104.

It is not an unprimeable number, because it can be changed into a prime (8112151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3711 + ... + 5476.

It is an arithmetic number, because the mean of its divisors is an integer number (2030548).

Almost surely, 2^8112121 is an apocalyptic number.

It is an amenable number.

8112121 is a deficient number, since it is larger than the sum of its proper divisors (10071).

8112121 is an equidigital number, since it uses as much as digits as its factorization.

8112121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10070.

The product of its digits is 32, while the sum is 16.

The square root of 8112121 is about 2848.1785407520. The cubic root of 8112121 is about 200.9300103671.

Adding to 8112121 its reverse (1212118), we get a palindrome (9324239).

The spelling of 8112121 in words is "eight million, one hundred twelve thousand, one hundred twenty-one".