12216607502869 has 32 divisors (see below), whose sum is σ = 16127378989056. Its totient is φ = 8959280382720.

The previous prime is 12216607502851. The next prime is 12216607502899. The reversal of 12216607502869 is 96820570661221.

It is a cyclic number.

It is not a de Polignac number, because 12216607502869 - 2¹⁹ = 12216606978581 is a prime.

It is a super-2 number, since 2×12216607502869² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12216607502819) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 109878184 + ... + 109989310.

It is an arithmetic number, because the mean of its divisors is an integer number (503980593408).

Almost surely, 2^{12216607502869} is an apocalyptic number.

It is an amenable number.

12216607502869 is a deficient number, since it is larger than the sum of its proper divisors (3910771486187).

12216607502869 is a wasteful number, since it uses less digits than its factorization.

12216607502869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195145.

The product of its (nonzero) digits is 4354560, while the sum is 55.

The spelling of 12216607502869 in words is "twelve trillion, two hundred sixteen billion, six hundred seven million, five hundred two thousand, eight hundred sixty-nine".