321214213222289 has 2 divisors, whose sum is σ = 321214213222290. Its totient is φ = 321214213222288.

The previous prime is 321214213222283. The next prime is 321214213222321. The reversal of 321214213222289 is 982222312412123.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 263174697475600 + 58039515746689 = 16222660^2 + 7618367^2 .

It is a cyclic number.

It is not a de Polignac number, because 321214213222289 - 2⁴⁴ = 303622027177873 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (321214213222283) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160607106611144 + 160607106611145.

It is an arithmetic number, because the mean of its divisors is an integer number (160607106611145).

Almost surely, 2^{321214213222289} is an apocalyptic number.

It is an amenable number.

321214213222289 is a deficient number, since it is larger than the sum of its proper divisors (1).

321214213222289 is an equidigital number, since it uses as much as digits as its factorization.

321214213222289 is an evil number, because the sum of its binary digits is even.

The product of its digits is 331776, while the sum is 44.

The spelling of 321214213222289 in words is "three hundred twenty-one trillion, two hundred fourteen billion, two hundred thirteen million, two hundred twenty-two thousand, two hundred eighty-nine".