12120250512 has 40 divisors (see below), whose sum is σ = 31314915360. Its totient is φ = 4039532800.

The previous prime is 12120250511. The next prime is 12120250529. The reversal of 12120250512 is 21505202121.

It is not an unprimeable number, because it can be changed into a prime (12120250511) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 496939 + ... + 520757.

It is an arithmetic number, because the mean of its divisors is an integer number (782872884).

Almost surely, 2^12120250512 is an apocalyptic number.

12120250512 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12120250512 is an abundant number, since it is smaller than the sum of its proper divisors (19194664848).

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

12120250512 is a wasteful number, since it uses less digits than its factorization.

12120250512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34431 (or 34425 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 21.

Adding to 12120250512 its reverse (21505202121), we get a palindrome (33625452633).

The spelling of 12120250512 in words is "twelve billion, one hundred twenty million, two hundred fifty thousand, five hundred twelve".