13444231212 has 18 divisors (see below), whose sum is σ = 33984028988. Its totient is φ = 4481410392.

The previous prime is 13444231183. The next prime is 13444231217. The reversal of 13444231212 is 21213244431.

13444231212 is a `hidden beast` number, since 1 + 3 + 4 + 442 + 3 + 1 + 212 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (13444231217) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 186725398 + ... + 186725469.

Almost surely, 2^13444231212 is an apocalyptic number.

13444231212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13444231212 is an abundant number, since it is smaller than the sum of its proper divisors (20539797776).

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

13444231212 is a wasteful number, since it uses less digits than its factorization.

13444231212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 373450877 (or 373450872 counting only the distinct ones).

The product of its digits is 4608, while the sum is 27.

Adding to 13444231212 its reverse (21213244431), we get a palindrome (34657475643).

The spelling of 13444231212 in words is "thirteen billion, four hundred forty-four million, two hundred thirty-one thousand, two hundred twelve".