13211111212 has 24 divisors (see below), whose sum is σ = 24907190000. Its totient is φ = 6095151936.

The previous prime is 13211111171. The next prime is 13211111233. The reversal of 13211111212 is 21211111231.

It is a happy number.

13211111212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 96739 + ... + 189157.

Almost surely, 2^13211111212 is an apocalyptic number.

It is an amenable number.

13211111212 is a deficient number, since it is larger than the sum of its proper divisors (11696078788).

13211111212 is a wasteful number, since it uses less digits than its factorization.

13211111212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95185 (or 95183 counting only the distinct ones).

The product of its digits is 24, while the sum is 16.

Adding to 13211111212 its reverse (21211111231), we get a palindrome (34422222443).

The spelling of 13211111212 in words is "thirteen billion, two hundred eleven million, one hundred eleven thousand, two hundred twelve".