12865422210 has 16 divisors (see below), whose sum is σ = 30877013376. Its totient is φ = 3430779248.

The previous prime is 12865422191. The next prime is 12865422233. The reversal of 12865422210 is 1222456821.

It is a super-2 number, since 2×12865422210² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

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, 214423674 + ... + 214423733.

It is an arithmetic number, because the mean of its divisors is an integer number (1929813336).

Almost surely, 2^12865422210 is an apocalyptic number.

12865422210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12865422210 is an abundant number, since it is smaller than the sum of its proper divisors (18011591166).

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

12865422210 is a wasteful number, since it uses less digits than its factorization.

12865422210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 428847417.

The product of its (nonzero) digits is 15360, while the sum is 33.

The spelling of 12865422210 in words is "twelve billion, eight hundred sixty-five million, four hundred twenty-two thousand, two hundred ten".