1112123221230 has 48 divisors (see below), whose sum is σ = 3104866466640. Its totient is φ = 254199593088.

The previous prime is 1112123221201. The next prime is 1112123221243. The reversal of 1112123221230 is 321223212111.

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

It is a junction number, because it is equal to n+sod(n) for n = 1112123221197 and 1112123221206.

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 23 ways as a sum of consecutive naturals, for example, 378271735 + ... + 378274674.

It is an arithmetic number, because the mean of its divisors is an integer number (64684718055).

Almost surely, 2^{1112123221230} is an apocalyptic number.

1112123221230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1112123221230 is an abundant number, since it is smaller than the sum of its proper divisors (1992743245410).

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

1112123221230 is a wasteful number, since it uses less digits than its factorization.

1112123221230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 756546433 (or 756546426 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 1112123221230 its reverse (321223212111), we get a palindrome (1433346433341).

The spelling of 1112123221230 in words is "one trillion, one hundred twelve billion, one hundred twenty-three million, two hundred twenty-one thousand, two hundred thirty".