12876821211 has 16 divisors (see below), whose sum is σ = 17310449664. Its totient is φ = 8513918784.

The previous prime is 12876821131. The next prime is 12876821249. The reversal of 12876821211 is 11212867821.

It is not a de Polignac number, because 12876821211 - 2⁹ = 12876820699 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12876821211.

It is not an unprimeable number, because it can be changed into a prime (12876821281) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1694326 + ... + 1701908.

It is an arithmetic number, because the mean of its divisors is an integer number (1081903104).

Almost surely, 2^12876821211 is an apocalyptic number.

12876821211 is a deficient number, since it is larger than the sum of its proper divisors (4433628453).

12876821211 is a wasteful number, since it uses less digits than its factorization.

12876821211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12170.

The product of its digits is 21504, while the sum is 39.

The spelling of 12876821211 in words is "twelve billion, eight hundred seventy-six million, eight hundred twenty-one thousand, two hundred eleven".