12112100992 has 32 divisors (see below), whose sum is σ = 24368508900. Its totient is φ = 5996083200.

The previous prime is 12112100989. The next prime is 12112100999. The reversal of 12112100992 is 29900121121.

It can be written as a sum of positive squares in 2 ways, for example, as 11258058816 + 854042176 = 106104^2 + 29224^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is a self number, because there is not a number n which added to its sum of digits gives 12112100992.

It is not an unprimeable number, because it can be changed into a prime (12112100999) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 455517 + ... + 481372.

Almost surely, 2^12112100992 is an apocalyptic number.

It is an amenable number.

12112100992 is an abundant number, since it is smaller than the sum of its proper divisors (12256407908).

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

12112100992 is an equidigital number, since it uses as much as digits as its factorization.

12112100992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 937004 (or 936992 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 28.

The spelling of 12112100992 in words is "twelve billion, one hundred twelve million, one hundred thousand, nine hundred ninety-two".