12525361220 has 24 divisors (see below), whose sum is σ = 26305473600. Its totient is φ = 5009722592.

The previous prime is 12525361217. The next prime is 12525361231. The reversal of 12525361220 is 2216352521.

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, 343841 + ... + 378519.

It is an arithmetic number, because the mean of its divisors is an integer number (1096061400).

Almost surely, 2^12525361220 is an apocalyptic number.

12525361220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12525361220 is an abundant number, since it is smaller than the sum of its proper divisors (13780112380).

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

12525361220 is a wasteful number, since it uses less digits than its factorization.

12525361220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52747 (or 52745 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 29.

The spelling of 12525361220 in words is "twelve billion, five hundred twenty-five million, three hundred sixty-one thousand, two hundred twenty".