12322100221 has 8 divisors (see below), whose sum is σ = 12568794624. Its totient is φ = 12075931920.

The previous prime is 12322100179. The next prime is 12322100227. The reversal of 12322100221 is 12200122321.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12322100221 - 2⁷ = 12322100093 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12322100195 and 12322100204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12322100227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 84045 + ... + 178066.

It is an arithmetic number, because the mean of its divisors is an integer number (1571099328).

Almost surely, 2^12322100221 is an apocalyptic number.

It is an amenable number.

12322100221 is a deficient number, since it is larger than the sum of its proper divisors (246694403).

12322100221 is an equidigital number, since it uses as much as digits as its factorization.

12322100221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 263051.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 12322100221 its reverse (12200122321), we get a palindrome (24522222542).

It can be divided in two parts, 12322100 and 221, that added together give a palindrome (12322321).

The spelling of 12322100221 in words is "twelve billion, three hundred twenty-two million, one hundred thousand, two hundred twenty-one".