12516122152 has 32 divisors (see below), whose sum is σ = 25085350080. Its totient is φ = 5839968640.

The previous prime is 12516122141. The next prime is 12516122167. The reversal of 12516122152 is 25122161521.

It is a super-2 number, since 2×12516122152² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12516122152.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 821998 + ... + 837085.

It is an arithmetic number, because the mean of its divisors is an integer number (783917190).

Almost surely, 2^12516122152 is an apocalyptic number.

It is an amenable number.

12516122152 is an abundant number, since it is smaller than the sum of its proper divisors (12569227928).

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

12516122152 is a wasteful number, since it uses less digits than its factorization.

12516122152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1659153 (or 1659149 counting only the distinct ones).

The product of its digits is 2400, while the sum is 28.

Adding to 12516122152 its reverse (25122161521), we get a palindrome (37638283673).

The spelling of 12516122152 in words is "twelve billion, five hundred sixteen million, one hundred twenty-two thousand, one hundred fifty-two".