12820886226812 has 6 divisors (see below), whose sum is σ = 22436550896928. Its totient is φ = 6410443113404.

The previous prime is 12820886226791. The next prime is 12820886226877. The reversal of 12820886226812 is 21862268802821.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1602610778348 + ... + 1602610778355.

It is an arithmetic number, because the mean of its divisors is an integer number (3739425149488).

Almost surely, 2^{12820886226812} is an apocalyptic number.

It is an amenable number.

12820886226812 is a deficient number, since it is larger than the sum of its proper divisors (9615664670116).

12820886226812 is a wasteful number, since it uses less digits than its factorization.

12820886226812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3205221556707 (or 3205221556705 counting only the distinct ones).

The product of its (nonzero) digits is 4718592, while the sum is 56.

The spelling of 12820886226812 in words is "twelve trillion, eight hundred twenty billion, eight hundred eighty-six million, two hundred twenty-six thousand, eight hundred twelve".