111124240212 has 24 divisors (see below), whose sum is σ = 259405556256. Its totient is φ = 37024890208.

The previous prime is 111124240177. The next prime is 111124240219. The reversal of 111124240212 is 212042421111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111124240219) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2037363 + ... + 2091194.

It is an arithmetic number, because the mean of its divisors is an integer number (10808564844).

Almost surely, 2^111124240212 is an apocalyptic number.

111124240212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

111124240212 is an abundant number, since it is smaller than the sum of its proper divisors (148281316044).

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

111124240212 is a wasteful number, since it uses less digits than its factorization.

111124240212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4130807 (or 4130805 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 111124240212 its reverse (212042421111), we get a palindrome (323166661323).

The spelling of 111124240212 in words is "one hundred eleven billion, one hundred twenty-four million, two hundred forty thousand, two hundred twelve".