12112332021 has 24 divisors (see below), whose sum is σ = 18511883520. Its totient is φ = 7610236416.

The previous prime is 12112331993. The next prime is 12112332047. The reversal of 12112332021 is 12023321121.

It is not a de Polignac number, because 12112332021 - 2¹⁷ = 12112200949 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12112331985 and 12112332003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12112332521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 150501 + ... + 216506.

It is an arithmetic number, because the mean of its divisors is an integer number (771328480).

Almost surely, 2^12112332021 is an apocalyptic number.

It is an amenable number.

12112332021 is a deficient number, since it is larger than the sum of its proper divisors (6399551499).

12112332021 is a wasteful number, since it uses less digits than its factorization.

12112332021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 367225 (or 367222 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 12112332021 its reverse (12023321121), we get a palindrome (24135653142).

The spelling of 12112332021 in words is "twelve billion, one hundred twelve million, three hundred thirty-two thousand, twenty-one".