12236215173 has 48 divisors (see below), whose sum is σ = 20454872256. Its totient is φ = 6449103360.

The previous prime is 12236215169. The next prime is 12236215181. The reversal of 12236215173 is 37151263221.

It is not a de Polignac number, because 12236215173 - 2² = 12236215169 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12236215163) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4128190 + ... + 4131152.

It is an arithmetic number, because the mean of its divisors is an integer number (426143172).

Almost surely, 2^12236215173 is an apocalyptic number.

12236215173 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

12236215173 is a deficient number, since it is larger than the sum of its proper divisors (8218657083).

12236215173 is a wasteful number, since it uses less digits than its factorization.

12236215173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5154 (or 5147 counting only the distinct ones).

The product of its digits is 15120, while the sum is 33.

Adding to 12236215173 its reverse (37151263221), we get a palindrome (49387478394).

The spelling of 12236215173 in words is "twelve billion, two hundred thirty-six million, two hundred fifteen thousand, one hundred seventy-three".