12211465136505 has 32 divisors (see below), whose sum is σ = 20590129718400. Its totient is φ = 6162967959552.

The previous prime is 12211465136449. The next prime is 12211465136509. The reversal of 12211465136505 is 50563156411221.

It is not a de Polignac number, because 12211465136505 - 2²⁴ = 12211448359289 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12211465136509) 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, 24178360 + ... + 24678249.

It is an arithmetic number, because the mean of its divisors is an integer number (643441553700).

Almost surely, 2^{12211465136505} is an apocalyptic number.

12211465136505 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12211465136505 is a deficient number, since it is larger than the sum of its proper divisors (8378664581895).

12211465136505 is a wasteful number, since it uses less digits than its factorization.

12211465136505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48857513.

The product of its (nonzero) digits is 216000, while the sum is 42.

The spelling of 12211465136505 in words is "twelve trillion, two hundred eleven billion, four hundred sixty-five million, one hundred thirty-six thousand, five hundred five".