321212211213 has 8 divisors (see below), whose sum is σ = 428293296576. Its totient is φ = 214136300000.

The previous prime is 321212211211. The next prime is 321212211217. The reversal of 321212211213 is 312112212123.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 321212211213 - 2¹ = 321212211211 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 321212211213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321212211211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1146288 + ... + 1398713.

It is an arithmetic number, because the mean of its divisors is an integer number (53536662072).

Almost surely, 2^321212211213 is an apocalyptic number.

It is an amenable number.

321212211213 is a deficient number, since it is larger than the sum of its proper divisors (107081085363).

321212211213 is a wasteful number, since it uses less digits than its factorization.

321212211213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2587075.

The product of its digits is 288, while the sum is 21.

Adding to 321212211213 its reverse (312112212123), we get a palindrome (633324423336).

The spelling of 321212211213 in words is "three hundred twenty-one billion, two hundred twelve million, two hundred eleven thousand, two hundred thirteen".