323211002222161 has 2 divisors, whose sum is σ = 323211002222162. Its totient is φ = 323211002222160.

The previous prime is 323211002222107. The next prime is 323211002222221. The reversal of 323211002222161 is 161222200112323.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 260088676380225 + 63122325841936 = 16127265^2 + 7944956^2 .

It is a cyclic number.

It is not a de Polignac number, because 323211002222161 - 2¹⁵ = 323211002189393 is a prime.

It is not a weakly prime, because it can be changed into another prime (323211002222461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 161605501111080 + 161605501111081.

It is an arithmetic number, because the mean of its divisors is an integer number (161605501111081).

Almost surely, 2^{323211002222161} is an apocalyptic number.

It is an amenable number.

323211002222161 is a deficient number, since it is larger than the sum of its proper divisors (1).

323211002222161 is an equidigital number, since it uses as much as digits as its factorization.

323211002222161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3456, while the sum is 28.

Adding to 323211002222161 its reverse (161222200112323), we get a palindrome (484433202334484).

The spelling of 323211002222161 in words is "three hundred twenty-three trillion, two hundred eleven billion, two million, two hundred twenty-two thousand, one hundred sixty-one".