13222211212 has 48 divisors (see below), whose sum is σ = 27463448320. Its totient is φ = 5452235712.

The previous prime is 13222211203. The next prime is 13222211239. The reversal of 13222211212 is 21211222231.

It is a self number, because there is not a number n which added to its sum of digits gives 13222211212.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1287 + ... + 162622.

Almost surely, 2^13222211212 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13222211212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13731724160).

13222211212 is an abundant number, since it is smaller than the sum of its proper divisors (14241237108).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13222211212 is a wasteful number, since it uses less digits than its factorization.

13222211212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164030 (or 164028 counting only the distinct ones).

The product of its digits is 192, while the sum is 19.

Adding to 13222211212 its reverse (21211222231), we get a palindrome (34433433443).

The spelling of 13222211212 in words is "thirteen billion, two hundred twenty-two million, two hundred eleven thousand, two hundred twelve".