320210120130221 has 2 divisors, whose sum is σ = 320210120130222. Its totient is φ = 320210120130220.

The previous prime is 320210120130193. The next prime is 320210120130371. The reversal of 320210120130221 is 122031021012023.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 306709161976996 + 13500958153225 = 17513114^2 + 3674365^2 .

It is a cyclic number.

It is not a de Polignac number, because 320210120130221 - 2²⁶ = 320210053021357 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 320210120130193 and 320210120130202.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (320210120130821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160105060065110 + 160105060065111.

It is an arithmetic number, because the mean of its divisors is an integer number (160105060065111).

Almost surely, 2^{320210120130221} is an apocalyptic number.

It is an amenable number.

320210120130221 is a deficient number, since it is larger than the sum of its proper divisors (1).

320210120130221 is an equidigital number, since it uses as much as digits as its factorization.

320210120130221 is an odious number, because the sum of its binary digits is odd.

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

Adding to 320210120130221 its reverse (122031021012023), we get a palindrome (442241141142244).

The spelling of 320210120130221 in words is "three hundred twenty trillion, two hundred ten billion, one hundred twenty million, one hundred thirty thousand, two hundred twenty-one".