12211686652 has 24 divisors (see below), whose sum is σ = 23371976880. Its totient is φ = 5536776960.

The previous prime is 12211686637. The next prime is 12211686673. The reversal of 12211686652 is 25668611221.

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 in 7 ways as a sum of consecutive naturals, for example, 332077 + ... + 367012.

It is an arithmetic number, because the mean of its divisors is an integer number (973832370).

Almost surely, 2^12211686652 is an apocalyptic number.

It is an amenable number.

12211686652 is a deficient number, since it is larger than the sum of its proper divisors (11160290228).

12211686652 is a wasteful number, since it uses less digits than its factorization.

12211686652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 699501 (or 699499 counting only the distinct ones).

The product of its digits is 69120, while the sum is 40.

The spelling of 12211686652 in words is "twelve billion, two hundred eleven million, six hundred eighty-six thousand, six hundred fifty-two".