322303211981 has 2 divisors, whose sum is σ = 322303211982. Its totient is φ = 322303211980.

The previous prime is 322303211933. The next prime is 322303212037. The reversal of 322303211981 is 189112303223.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 238646905225 + 83656306756 = 488515^2 + 289234^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-322303211981 is a prime.

It is a super-2 number, since 2×322303211981² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (322303211381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 161151605990 + 161151605991.

It is an arithmetic number, because the mean of its divisors is an integer number (161151605991).

Almost surely, 2^322303211981 is an apocalyptic number.

It is an amenable number.

322303211981 is a deficient number, since it is larger than the sum of its proper divisors (1).

322303211981 is an equidigital number, since it uses as much as digits as its factorization.

322303211981 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15552, while the sum is 35.

It can be divided in two parts, 322 and 303211981, that added together give a palindrome (303212303).

The spelling of 322303211981 in words is "three hundred twenty-two billion, three hundred three million, two hundred eleven thousand, nine hundred eighty-one".