32211232121 has 2 divisors, whose sum is σ = 32211232122. Its totient is φ = 32211232120.

The previous prime is 32211232111. The next prime is 32211232129. The reversal of 32211232121 is 12123211223.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21626937721 + 10584294400 = 147061^2 + 102880^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-32211232121 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 32211232093 and 32211232102.

It is not a weakly prime, because it can be changed into another prime (32211232129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16105616060 + 16105616061.

It is an arithmetic number, because the mean of its divisors is an integer number (16105616061).

Almost surely, 2^32211232121 is an apocalyptic number.

It is an amenable number.

32211232121 is a deficient number, since it is larger than the sum of its proper divisors (1).

32211232121 is an equidigital number, since it uses as much as digits as its factorization.

32211232121 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 288, while the sum is 20.

Adding to 32211232121 its reverse (12123211223), we get a palindrome (44334443344).

The spelling of 32211232121 in words is "thirty-two billion, two hundred eleven million, two hundred thirty-two thousand, one hundred twenty-one".