13222210212 has 72 divisors (see below), whose sum is σ = 34261325280. Its totient is φ = 4296977280.

The previous prime is 13222210189. The next prime is 13222210217. The reversal of 13222210212 is 21201222231.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (13222210217) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3627663 + ... + 3631305.

It is an arithmetic number, because the mean of its divisors is an integer number (475851740).

Almost surely, 2^13222210212 is an apocalyptic number.

13222210212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13222210212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17130662640).

13222210212 is an abundant number, since it is smaller than the sum of its proper divisors (21039115068).

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

13222210212 is a wasteful number, since it uses less digits than its factorization.

13222210212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6153 (or 6148 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 13222210212 its reverse (21201222231), we get a palindrome (34423432443).

The spelling of 13222210212 in words is "thirteen billion, two hundred twenty-two million, two hundred ten thousand, two hundred twelve".