1112322420 has 144 divisors (see below), whose sum is σ = 3693912768. Its totient is φ = 268692480.

The previous prime is 1112322413. The next prime is 1112322433. The reversal of 1112322420 is 242232111.

It is a happy number.

1112322420 is a `hidden beast` number, since 1 + 11 + 232 + 2 + 420 = 666.

It is a super-2 number, since 2×1112322420² = 2474522332069312800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 1112322393 and 1112322402.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 666427 + ... + 668093.

It is an arithmetic number, because the mean of its divisors is an integer number (25652172).

Almost surely, 2^1112322420 is an apocalyptic number.

1112322420 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 1112322420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1846956384).

1112322420 is an abundant number, since it is smaller than the sum of its proper divisors (2581590348).

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

1112322420 is a wasteful number, since it uses less digits than its factorization.

1112322420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2030 (or 2025 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 1112322420 is about 33351.4980173305. The cubic root of 1112322420 is about 1036.1204137951.

Adding to 1112322420 its reverse (242232111), we get a palindrome (1354554531).

The spelling of 1112322420 in words is "one billion, one hundred twelve million, three hundred twenty-two thousand, four hundred twenty".