12310332221 has 16 divisors (see below), whose sum is σ = 13901414400. Its totient is φ = 10799929200.

The previous prime is 12310332187. The next prime is 12310332227. The reversal of 12310332221 is 12223301321.

It is a cyclic number.

It is not a de Polignac number, because 12310332221 - 2⁶ = 12310332157 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12310332193 and 12310332202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12310332227) 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, 72140 + ... + 172698.

It is an arithmetic number, because the mean of its divisors is an integer number (868838400).

Almost surely, 2^12310332221 is an apocalyptic number.

12310332221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12310332221 is a deficient number, since it is larger than the sum of its proper divisors (1591082179).

12310332221 is a wasteful number, since it uses less digits than its factorization.

12310332221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100960.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 12310332221 its reverse (12223301321), we get a palindrome (24533633542).

The spelling of 12310332221 in words is "twelve billion, three hundred ten million, three hundred thirty-two thousand, two hundred twenty-one".