12311300221 has 16 divisors (see below), whose sum is σ = 13568974848. Its totient is φ = 11077159600.

The previous prime is 12311300219. The next prime is 12311300257. The reversal of 12311300221 is 12200311321.

It is a cyclic number.

It is not a de Polignac number, because 12311300221 - 2¹ = 12311300219 is a prime.

It is a super-2 number, since 2×12311300221² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12311300195 and 12311300204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12311301221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 540750 + ... + 563056.

It is an arithmetic number, because the mean of its divisors is an integer number (848060928).

Almost surely, 2^12311300221 is an apocalyptic number.

12311300221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12311300221 is a deficient number, since it is larger than the sum of its proper divisors (1257674627).

12311300221 is a wasteful number, since it uses less digits than its factorization.

12311300221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22832.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 12311300221 its reverse (12200311321), we get a palindrome (24511611542).

The spelling of 12311300221 in words is "twelve billion, three hundred eleven million, three hundred thousand, two hundred twenty-one".