12211873564 has 12 divisors (see below), whose sum is σ = 23313576888. Its totient is φ = 5550851600.

The previous prime is 12211873561. The next prime is 12211873571. The reversal of 12211873564 is 46537811221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12211873561) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 138771247 + ... + 138771334.

It is an arithmetic number, because the mean of its divisors is an integer number (1942798074).

Almost surely, 2^12211873564 is an apocalyptic number.

It is an amenable number.

12211873564 is a deficient number, since it is larger than the sum of its proper divisors (11101703324).

12211873564 is a wasteful number, since it uses less digits than its factorization.

12211873564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 277542596 (or 277542594 counting only the distinct ones).

The product of its digits is 80640, while the sum is 40.

The spelling of 12211873564 in words is "twelve billion, two hundred eleven million, eight hundred seventy-three thousand, five hundred sixty-four".