111543224212 has 12 divisors (see below), whose sum is σ = 223086448480. Its totient is φ = 47804238936.

The previous prime is 111543224201. The next prime is 111543224251. The reversal of 111543224212 is 212422345111.

It is a happy number.

111543224212 is an admirable number.

It is a Harshad number since it is a multiple of its sum of digits (28), and also a Moran number because the ratio is a prime number: 3983686579 = 111543224212 / (1 + 1 + 1 + 5 + 4 + 3 + 2 + 2 + 4 + 2 + 1 + 2).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1991843262 + ... + 1991843317.

Almost surely, 2^111543224212 is an apocalyptic number.

It is an amenable number.

111543224212 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

111543224212 is a wasteful number, since it uses less digits than its factorization.

111543224212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3983686590 (or 3983686588 counting only the distinct ones).

The product of its digits is 3840, while the sum is 28.

Adding to 111543224212 its reverse (212422345111), we get a palindrome (323965569323).

The spelling of 111543224212 in words is "one hundred eleven billion, five hundred forty-three million, two hundred twenty-four thousand, two hundred twelve".