13223211012 has 96 divisors (see below), whose sum is σ = 37425561600. Its totient is φ = 4004186400.

The previous prime is 13223210993. The next prime is 13223211019. The reversal of 13223211012 is 21011232231.

13223211012 is a `hidden beast` number, since 1 + 322 + 321 + 10 + 12 = 666.

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 (13223211019) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2172189 + ... + 2178267.

It is an arithmetic number, because the mean of its divisors is an integer number (389849600).

Almost surely, 2^13223211012 is an apocalyptic number.

13223211012 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 13223211012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18712780800).

13223211012 is an abundant number, since it is smaller than the sum of its proper divisors (24202350588).

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

13223211012 is a wasteful number, since it uses less digits than its factorization.

13223211012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7934 (or 7926 counting only the distinct ones).

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

Adding to 13223211012 its reverse (21011232231), we get a palindrome (34234443243).

The spelling of 13223211012 in words is "thirteen billion, two hundred twenty-three million, two hundred eleven thousand, twelve".