12333212221 has 16 divisors (see below), whose sum is σ = 13504252608. Its totient is φ = 11170566400.

The previous prime is 12333212219. The next prime is 12333212231. The reversal of 12333212221 is 12221233321.

It is a cyclic number.

It is not a de Polignac number, because 12333212221 - 2¹ = 12333212219 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12333212192 and 12333212201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12333212231) 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, 3827391 + ... + 3830611.

It is an arithmetic number, because the mean of its divisors is an integer number (844015788).

Almost surely, 2^12333212221 is an apocalyptic number.

12333212221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12333212221 is a deficient number, since it is larger than the sum of its proper divisors (1171040387).

12333212221 is a wasteful number, since it uses less digits than its factorization.

12333212221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4412.

The product of its digits is 864, while the sum is 22.

Adding to 12333212221 its reverse (12221233321), we get a palindrome (24554445542).

The spelling of 12333212221 in words is "twelve billion, three hundred thirty-three million, two hundred twelve thousand, two hundred twenty-one".