322212121213 has 16 divisors (see below), whose sum is σ = 345464993520. Its totient is φ = 299456905216.

The previous prime is 322212121211. The next prime is 322212121219. The reversal of 322212121213 is 312121212223.

It can be written as a sum of positive squares in 8 ways, for example, as 40592981529 + 281619139684 = 201477^2 + 530678^2 .

It is a cyclic number.

It is not a de Polignac number, because 322212121213 - 2¹ = 322212121211 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (322212121211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 204981 + ... + 828517.

It is an arithmetic number, because the mean of its divisors is an integer number (21591562095).

Almost surely, 2^322212121213 is an apocalyptic number.

It is an amenable number.

322212121213 is a deficient number, since it is larger than the sum of its proper divisors (23252872307).

322212121213 is a wasteful number, since it uses less digits than its factorization.

322212121213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 623936.

The product of its digits is 576, while the sum is 22.

Adding to 322212121213 its reverse (312121212223), we get a palindrome (634333333436).

The spelling of 322212121213 in words is "three hundred twenty-two billion, two hundred twelve million, one hundred twenty-one thousand, two hundred thirteen".