12536210220 has 24 divisors (see below), whose sum is σ = 35101388784. Its totient is φ = 3342989376.

The previous prime is 12536210213. The next prime is 12536210231. The reversal of 12536210220 is 2201263521.

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 7 ways as a sum of consecutive naturals, for example, 104468359 + ... + 104468478.

It is an arithmetic number, because the mean of its divisors is an integer number (1462557866).

Almost surely, 2^12536210220 is an apocalyptic number.

12536210220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12536210220 is an abundant number, since it is smaller than the sum of its proper divisors (22565178564).

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

12536210220 is a wasteful number, since it uses less digits than its factorization.

12536210220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208936849 (or 208936847 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

Adding to 12536210220 its reverse (2201263521), we get a palindrome (14737473741).

The spelling of 12536210220 in words is "twelve billion, five hundred thirty-six million, two hundred ten thousand, two hundred twenty".