12705331250 has 24 divisors (see below), whose sum is σ = 23820983172. Its totient is φ = 5082130000.

The previous prime is 12705331241. The next prime is 12705331283. The reversal of 12705331250 is 5213350721.

It can be written as a sum of positive squares in 6 ways, for example, as 67749361 + 12637581889 = 8231^2 + 112417^2 .

It is a super-2 number, since 2×12705331250² (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 (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1010177 + ... + 1022676.

Almost surely, 2^12705331250 is an apocalyptic number.

12705331250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12705331250 is a deficient number, since it is larger than the sum of its proper divisors (11115651922).

12705331250 is an frugal number, since it uses more digits than its factorization.

12705331250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2032880 (or 2032860 counting only the distinct ones).

The product of its (nonzero) digits is 6300, while the sum is 29.

Adding to 12705331250 its reverse (5213350721), we get a palindrome (17918681971).

The spelling of 12705331250 in words is "twelve billion, seven hundred five million, three hundred thirty-one thousand, two hundred fifty".