232213221121 has 12 divisors (see below), whose sum is σ = 270337187988. Its totient is φ = 198883984992.

The previous prime is 232213221109. The next prime is 232213221169. The reversal of 232213221121 is 121122312232.

It can be written as a sum of positive squares in 2 ways, for example, as 132776428225 + 99436792896 = 364385^2 + 315336^2 .

It is not a de Polignac number, because 232213221121 - 2⁵ = 232213221089 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 232213221092 and 232213221101.

It is not an unprimeable number, because it can be changed into a prime (232213221181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1792966 + ... + 1918111.

It is an arithmetic number, because the mean of its divisors is an integer number (22528098999).

Almost surely, 2^232213221121 is an apocalyptic number.

It is an amenable number.

232213221121 is a deficient number, since it is larger than the sum of its proper divisors (38123966867).

232213221121 is a wasteful number, since it uses less digits than its factorization.

232213221121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3712368 (or 3712361 counting only the distinct ones).

The product of its digits is 576, while the sum is 22.

Adding to 232213221121 its reverse (121122312232), we get a palindrome (353335533353).

The spelling of 232213221121 in words is "two hundred thirty-two billion, two hundred thirteen million, two hundred twenty-one thousand, one hundred twenty-one".