11213443212 has 12 divisors (see below), whose sum is σ = 26164700856. Its totient is φ = 3737814400.

The previous prime is 11213443211. The next prime is 11213443231. The reversal of 11213443212 is 21234431211.

It is a tau number, because it is divible by the number of its divisors (12).

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 (11213443211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 467226789 + ... + 467226812.

It is an arithmetic number, because the mean of its divisors is an integer number (2180391738).

Almost surely, 2^11213443212 is an apocalyptic number.

11213443212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11213443212 is an abundant number, since it is smaller than the sum of its proper divisors (14951257644).

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

11213443212 is a wasteful number, since it uses less digits than its factorization.

11213443212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 934453608 (or 934453606 counting only the distinct ones).

The product of its digits is 1152, while the sum is 24.

Adding to 11213443212 its reverse (21234431211), we get a palindrome (32447874423).

The spelling of 11213443212 in words is "eleven billion, two hundred thirteen million, four hundred forty-three thousand, two hundred twelve".