321001122213 has 24 divisors (see below), whose sum is σ = 485198505792. Its totient is φ = 204116444928.

The previous prime is 321001122209. The next prime is 321001122251. The reversal of 321001122213 is 312221100123.

It is not a de Polignac number, because 321001122213 - 2² = 321001122209 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321001122313) 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 in 23 ways as a sum of consecutive naturals, for example, 2123431 + ... + 2269572.

It is an arithmetic number, because the mean of its divisors is an integer number (20216604408).

Almost surely, 2^321001122213 is an apocalyptic number.

It is an amenable number.

321001122213 is a deficient number, since it is larger than the sum of its proper divisors (164197383579).

321001122213 is a wasteful number, since it uses less digits than its factorization.

321001122213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4393385 (or 4393382 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 321001122213 its reverse (312221100123), we get a palindrome (633222222336).

The spelling of 321001122213 in words is "three hundred twenty-one billion, one million, one hundred twenty-two thousand, two hundred thirteen".