12163006315221 has 4 divisors (see below), whose sum is σ = 16217341753632. Its totient is φ = 8108670876812.

The previous prime is 12163006315181. The next prime is 12163006315283. The reversal of 12163006315221 is 12251360036121.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12163006315221 - 2⁶ = 12163006315157 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12163006315321) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2027167719201 + ... + 2027167719206.

It is an arithmetic number, because the mean of its divisors is an integer number (4054335438408).

Almost surely, 2^{12163006315221} is an apocalyptic number.

It is an amenable number.

12163006315221 is a deficient number, since it is larger than the sum of its proper divisors (4054335438411).

12163006315221 is an equidigital number, since it uses as much as digits as its factorization.

12163006315221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4054335438410.

The product of its (nonzero) digits is 12960, while the sum is 33.

The spelling of 12163006315221 in words is "twelve trillion, one hundred sixty-three billion, six million, three hundred fifteen thousand, two hundred twenty-one".