111221340243124 has 24 divisors (see below), whose sum is σ = 194782879968768. Its totient is φ = 55569090145440.

The previous prime is 111221340243109. The next prime is 111221340243133. The reversal of 111221340243124 is 421342043122111.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 450784354 + ... + 451031014.

It is an arithmetic number, because the mean of its divisors is an integer number (8115953332032).

Almost surely, 2^{111221340243124} is an apocalyptic number.

It is an amenable number.

111221340243124 is a deficient number, since it is larger than the sum of its proper divisors (83561539725644).

111221340243124 is a wasteful number, since it uses less digits than its factorization.

111221340243124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 330495 (or 330493 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 31.

Adding to 111221340243124 its reverse (421342043122111), we get a palindrome (532563383365235).

The spelling of 111221340243124 in words is "one hundred eleven trillion, two hundred twenty-one billion, three hundred forty million, two hundred forty-three thousand, one hundred twenty-four".