112221240 has 128 divisors (see below), whose sum is σ = 352235520. Its totient is φ = 28569600.

The previous prime is 112221227. The next prime is 112221283. The reversal of 112221240 is 42122211.

It is a Harshad number since it is a multiple of its sum of digits (15).

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, 360685 + ... + 360995.

It is an arithmetic number, because the mean of its divisors is an integer number (2751840).

Almost surely, 2^112221240 is an apocalyptic number.

112221240 is a gapful number since it is divisible by the number (10) 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 112221240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (176117760).

112221240 is an abundant number, since it is smaller than the sum of its proper divisors (240014280).

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

112221240 is a wasteful number, since it uses less digits than its factorization.

112221240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 453 (or 449 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 112221240 is about 10593.4526949432. The cubic root of 112221240 is about 482.3456368585.

Adding to 112221240 its reverse (42122211), we get a palindrome (154343451).

The spelling of 112221240 in words is "one hundred twelve million, two hundred twenty-one thousand, two hundred forty".