11543224212 has 72 divisors (see below), whose sum is σ = 31955894880. Its totient is φ = 3491553600.

The previous prime is 11543224181. The next prime is 11543224219. The reversal of 11543224212 is 21242234511.

11543224212 is a `hidden beast` number, since 1 + 15 + 432 + 2 + 4 + 212 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11543224219) 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, 181414 + ... + 236637.

Almost surely, 2^11543224212 is an apocalyptic number.

11543224212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11543224212 is an abundant number, since it is smaller than the sum of its proper divisors (20412670668).

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

11543224212 is a wasteful number, since it uses less digits than its factorization.

11543224212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 418133 (or 418128 counting only the distinct ones).

The product of its digits is 3840, while the sum is 27.

Adding to 11543224212 its reverse (21242234511), we get a palindrome (32785458723).

The spelling of 11543224212 in words is "eleven billion, five hundred forty-three million, two hundred twenty-four thousand, two hundred twelve".