321211312230211 has 16 divisors (see below), whose sum is σ = 346125429254304. Its totient is φ = 296326607295744.

The previous prime is 321211312230209. The next prime is 321211312230217. The reversal of 321211312230211 is 112032213112123.

It is a cyclic number.

It is not a de Polignac number, because 321211312230211 - 2¹ = 321211312230209 is a prime.

It is a super-2 number, since 2×321211312230211² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (321211312230217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 163132176 + ... + 165089458.

It is an arithmetic number, because the mean of its divisors is an integer number (21632839328394).

Almost surely, 2^{321211312230211} is an apocalyptic number.

321211312230211 is a deficient number, since it is larger than the sum of its proper divisors (24914117024093).

321211312230211 is a wasteful number, since it uses less digits than its factorization.

321211312230211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1964790.

The product of its (nonzero) digits is 864, while the sum is 25.

Adding to 321211312230211 its reverse (112032213112123), we get a palindrome (433243525342334).

The spelling of 321211312230211 in words is "three hundred twenty-one trillion, two hundred eleven billion, three hundred twelve million, two hundred thirty thousand, two hundred eleven".