12011250051 has 32 divisors (see below), whose sum is σ = 17961377280. Its totient is φ = 7932709728.

The previous prime is 12011250029. The next prime is 12011250067. The reversal of 12011250051 is 15005211021.

12011250051 is a `hidden beast` number, since 1 + 2 + 0 + 112 + 500 + 51 = 666.

12011250051 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12011250051 - 2⁹ = 12011249539 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12011250851) 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 31 ways as a sum of consecutive naturals, for example, 1379925 + ... + 1388601.

It is an arithmetic number, because the mean of its divisors is an integer number (561293040).

Almost surely, 2^12011250051 is an apocalyptic number.

12011250051 is a deficient number, since it is larger than the sum of its proper divisors (5950127229).

12011250051 is a wasteful number, since it uses less digits than its factorization.

12011250051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9160 (or 9154 counting only the distinct ones).

The product of its (nonzero) digits is 100, while the sum is 18.

Adding to 12011250051 its reverse (15005211021), we get a palindrome (27016461072).

The spelling of 12011250051 in words is "twelve billion, eleven million, two hundred fifty thousand, fifty-one".