1112220212124 has 144 divisors (see below), whose sum is σ = 3104554521600. Its totient is φ = 308880278784.

The previous prime is 1112220212123. The next prime is 1112220212153. The reversal of 1112220212124 is 4212120222111.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 1112220212124.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1112220212123) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 2907477 + ... + 3267699.

It is an arithmetic number, because the mean of its divisors is an integer number (21559406400).

Almost surely, 2^{1112220212124} is an apocalyptic number.

1112220212124 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1112220212124, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1552277260800).

1112220212124 is an abundant number, since it is smaller than the sum of its proper divisors (1992334309476).

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

1112220212124 is a wasteful number, since it uses less digits than its factorization.

1112220212124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 360392 (or 360383 counting only the distinct ones).

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

Adding to 1112220212124 its reverse (4212120222111), we get a palindrome (5324340434235).

The spelling of 1112220212124 in words is "one trillion, one hundred twelve billion, two hundred twenty million, two hundred twelve thousand, one hundred twenty-four".