12812226972 has 24 divisors (see below), whose sum is σ = 29898254736. Its totient is φ = 4270305408.

The previous prime is 12812226967. The next prime is 12812226989. The reversal of 12812226972 is 27962221821.

It is a congruent 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, 81048 + ... + 179424.

It is an arithmetic number, because the mean of its divisors is an integer number (1245760614).

Almost surely, 2^12812226972 is an apocalyptic number.

12812226972 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12812226972 is an abundant number, since it is smaller than the sum of its proper divisors (17086027764).

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

12812226972 is a wasteful number, since it uses less digits than its factorization.

12812226972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109237 (or 109235 counting only the distinct ones).

The product of its digits is 96768, while the sum is 42.

The spelling of 12812226972 in words is "twelve billion, eight hundred twelve million, two hundred twenty-six thousand, nine hundred seventy-two".