112121724 has 96 divisors (see below), whose sum is σ = 309786624. Its totient is φ = 31115520.

The previous prime is 112121701. The next prime is 112121747. The reversal of 112121724 is 427121211.

It is an interprime number because it is at equal distance from previous prime (112121701) and next prime (112121747).

It is a self number, because there is not a number n which added to its sum of digits gives 112121724.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 382522 + ... + 382814.

It is an arithmetic number, because the mean of its divisors is an integer number (3226944).

Almost surely, 2^112121724 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 112121724, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (154893312).

112121724 is an abundant number, since it is smaller than the sum of its proper divisors (197664900).

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

112121724 is a wasteful number, since it uses less digits than its factorization.

112121724 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 547 (or 545 counting only the distinct ones).

The product of its digits is 224, while the sum is 21.

The square root of 112121724 is about 10588.7546009906. The cubic root of 112121724 is about 482.2030158946.

Adding to 112121724 its reverse (427121211), we get a palindrome (539242935).

The spelling of 112121724 in words is "one hundred twelve million, one hundred twenty-one thousand, seven hundred twenty-four".