12227127210156 has 96 divisors (see below), whose sum is σ = 30501201931200. Its totient is φ = 3798907305984.

The previous prime is 12227127210131. The next prime is 12227127210211. The reversal of 12227127210156 is 65101272172221.

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 31 ways as a sum of consecutive naturals, for example, 9646626 + ... + 10840278.

It is an arithmetic number, because the mean of its divisors is an integer number (317720853450).

Almost surely, 2^{12227127210156} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12227127210156, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15250600965600).

12227127210156 is an abundant number, since it is smaller than the sum of its proper divisors (18274074721044).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12227127210156 is a wasteful number, since it uses less digits than its factorization.

12227127210156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1194163 (or 1194161 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 39.

Adding to 12227127210156 its reverse (65101272172221), we get a palindrome (77328399382377).

The spelling of 12227127210156 in words is "twelve trillion, two hundred twenty-seven billion, one hundred twenty-seven million, two hundred ten thousand, one hundred fifty-six".