1320221220301 has 2 divisors, whose sum is σ = 1320221220302. Its totient is φ = 1320221220300.

The previous prime is 1320221220299. The next prime is 1320221220323. The reversal of 1320221220301 is 1030221220231.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 702855873225 + 617365347076 = 838365^2 + 785726^2 .

It is a cyclic number.

It is not a de Polignac number, because 1320221220301 - 2¹ = 1320221220299 is a prime.

Together with 1320221220299, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1320221220361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 660110610150 + 660110610151.

It is an arithmetic number, because the mean of its divisors is an integer number (660110610151).

Almost surely, 2^{1320221220301} is an apocalyptic number.

It is an amenable number.

1320221220301 is a deficient number, since it is larger than the sum of its proper divisors (1).

1320221220301 is an equidigital number, since it uses as much as digits as its factorization.

1320221220301 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 19.

Adding to 1320221220301 its reverse (1030221220231), we get a palindrome (2350442440532).

The spelling of 1320221220301 in words is "one trillion, three hundred twenty billion, two hundred twenty-one million, two hundred twenty thousand, three hundred one".