3211201213321 has 2 divisors, whose sum is σ = 3211201213322. Its totient is φ = 3211201213320.

The previous prime is 3211201213307. The next prime is 3211201213397. The reversal of 3211201213321 is 1233121021123.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2759568828025 + 451632385296 = 1661195^2 + 672036^2 .

It is an emirp because it is prime and its reverse (1233121021123) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3211201213321 - 2¹⁷ = 3211201082249 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3211201213292 and 3211201213301.

It is not a weakly prime, because it can be changed into another prime (3211201213721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1605600606660 + 1605600606661.

It is an arithmetic number, because the mean of its divisors is an integer number (1605600606661).

Almost surely, 2^{3211201213321} is an apocalyptic number.

It is an amenable number.

3211201213321 is a deficient number, since it is larger than the sum of its proper divisors (1).

3211201213321 is an equidigital number, since it uses as much as digits as its factorization.

3211201213321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 3211201213321 its reverse (1233121021123), we get a palindrome (4444322234444).

The spelling of 3211201213321 in words is "three trillion, two hundred eleven billion, two hundred one million, two hundred thirteen thousand, three hundred twenty-one".