12216537356 has 12 divisors (see below), whose sum is σ = 21381707592. Its totient is φ = 6107478048.

The previous prime is 12216537301. The next prime is 12216537373. The reversal of 12216537356 is 65373561221.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 162185 + ... + 225248.

It is an arithmetic number, because the mean of its divisors is an integer number (1781808966).

Almost surely, 2^12216537356 is an apocalyptic number.

It is an amenable number.

12216537356 is a deficient number, since it is larger than the sum of its proper divisors (9165170236).

12216537356 is a wasteful number, since it uses less digits than its factorization.

12216537356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 395320 (or 395318 counting only the distinct ones).

The product of its digits is 226800, while the sum is 41.

The spelling of 12216537356 in words is "twelve billion, two hundred sixteen million, five hundred thirty-seven thousand, three hundred fifty-six".