12321220211 has 8 divisors (see below), whose sum is σ = 12439059840. Its totient is φ = 12203535232.

The previous prime is 12321220201. The next prime is 12321220231. The reversal of 12321220211 is 11202212321.

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 12321220211 - 2¹⁰ = 12321219187 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12321220211.

It is not an unprimeable number, because it can be changed into a prime (12321220201) 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, 124721 + ... + 200493.

It is an arithmetic number, because the mean of its divisors is an integer number (1554882480).

Almost surely, 2^12321220211 is an apocalyptic number.

12321220211 is a deficient number, since it is larger than the sum of its proper divisors (117839629).

12321220211 is a wasteful number, since it uses less digits than its factorization.

12321220211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77325.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 12321220211 its reverse (11202212321), we get a palindrome (23523432532).

The spelling of 12321220211 in words is "twelve billion, three hundred twenty-one million, two hundred twenty thousand, two hundred eleven".