12311102002221 has 128 divisors (see below), whose sum is σ = 21225991680000. Its totient is φ = 6973729551360.

The previous prime is 12311102002169. The next prime is 12311102002229. The reversal of 12311102002221 is 12220020111321.

12311102002221 is a `hidden beast` number, since 1 + 231 + 1 + 10 + 200 + 2 + 221 = 666.

12311102002221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12311102002221 - 2⁷ = 12311102002093 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12311102002194 and 12311102002203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12311102002229) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 229490920 + ... + 229544558.

It is an arithmetic number, because the mean of its divisors is an integer number (165828060000).

Almost surely, 2^{12311102002221} is an apocalyptic number.

12311102002221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12311102002221 is a deficient number, since it is larger than the sum of its proper divisors (8914889677779).

12311102002221 is a wasteful number, since it uses less digits than its factorization.

12311102002221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54224 (or 54218 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 12311102002221 its reverse (12220020111321), we get a palindrome (24531122113542).

The spelling of 12311102002221 in words is "twelve trillion, three hundred eleven billion, one hundred two million, two thousand, two hundred twenty-one".