32213221321 has 2 divisors, whose sum is σ = 32213221322. Its totient is φ = 32213221320.

The previous prime is 32213221291. The next prime is 32213221333. The reversal of 32213221321 is 12312231223.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 30542455696 + 1670765625 = 174764^2 + 40875^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-32213221321 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 32213221292 and 32213221301.

It is not a weakly prime, because it can be changed into another prime (32213221421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16106610660 + 16106610661.

It is an arithmetic number, because the mean of its divisors is an integer number (16106610661).

Almost surely, 2^32213221321 is an apocalyptic number.

It is an amenable number.

32213221321 is a deficient number, since it is larger than the sum of its proper divisors (1).

32213221321 is an equidigital number, since it uses as much as digits as its factorization.

32213221321 is an evil number, because the sum of its binary digits is even.

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

Adding to 32213221321 its reverse (12312231223), we get a palindrome (44525452544).

The spelling of 32213221321 in words is "thirty-two billion, two hundred thirteen million, two hundred twenty-one thousand, three hundred twenty-one".