12112236528 has 80 divisors (see below), whose sum is σ = 36726458880. Its totient is φ = 3367104768.

The previous prime is 12112236509. The next prime is 12112236529. The reversal of 12112236528 is 82563221121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12112236529) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 474708 + ... + 499571.

It is an arithmetic number, because the mean of its divisors is an integer number (459080736).

Almost surely, 2^12112236528 is an apocalyptic number.

It is an amenable number.

12112236528 is an abundant number, since it is smaller than the sum of its proper divisors (24614222352).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12112236528 is a wasteful number, since it uses less digits than its factorization.

12112236528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 974334 (or 974328 counting only the distinct ones).

The product of its digits is 11520, while the sum is 33.

Adding to 12112236528 its reverse (82563221121), we get a palindrome (94675457649).

The spelling of 12112236528 in words is "twelve billion, one hundred twelve million, two hundred thirty-six thousand, five hundred twenty-eight".