12512214320 has 20 divisors (see below), whose sum is σ = 29090898480. Its totient is φ = 5004885696.

The previous prime is 12512214317. The next prime is 12512214367. The reversal of 12512214320 is 2341221521.

12512214320 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (20).

It is a super-2 number, since 2×12512214320² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 78201260 + ... + 78201419.

It is an arithmetic number, because the mean of its divisors is an integer number (1454544924).

Almost surely, 2^12512214320 is an apocalyptic number.

12512214320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12512214320 is an abundant number, since it is smaller than the sum of its proper divisors (16578684160).

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

12512214320 is a wasteful number, since it uses less digits than its factorization.

12512214320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156402692 (or 156402686 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 23.

Adding to 12512214320 its reverse (2341221521), we get a palindrome (14853435841).

The spelling of 12512214320 in words is "twelve billion, five hundred twelve million, two hundred fourteen thousand, three hundred twenty".