12112250445 has 12 divisors (see below), whose sum is σ = 20994567516. Its totient is φ = 6459866880.

The previous prime is 12112250443. The next prime is 12112250471. The reversal of 12112250445 is 54405221121.

It is a happy number.

12112250445 is a `hidden beast` number, since 1 + 2 + 112 + 2 + 504 + 45 = 666.

12112250445 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 8960326281 + 3151924164 = 94659^2 + 56142^2 .

It is not a de Polignac number, because 12112250445 - 2¹ = 12112250443 is a prime.

It is a super-2 number, since 2×12112250445² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12112250443) 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 11 ways as a sum of consecutive naturals, for example, 134580516 + ... + 134580605.

It is an arithmetic number, because the mean of its divisors is an integer number (1749547293).

Almost surely, 2^12112250445 is an apocalyptic number.

12112250445 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12112250445 is a deficient number, since it is larger than the sum of its proper divisors (8882317071).

12112250445 is a wasteful number, since it uses less digits than its factorization.

12112250445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 269161132 (or 269161129 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 27.

Adding to 12112250445 its reverse (54405221121), we get a palindrome (66517471566).

The spelling of 12112250445 in words is "twelve billion, one hundred twelve million, two hundred fifty thousand, four hundred forty-five".