1112221012123 has 8 divisors (see below), whose sum is σ = 1268233914528. Its totient is φ = 966273458304.

The previous prime is 1112221012109. The next prime is 1112221012127. The reversal of 1112221012123 is 3212101222111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1112221012123 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1112221012123.

It is not an unprimeable number, because it can be changed into a prime (1112221012127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2516336911 + ... + 2516337352.

It is an arithmetic number, because the mean of its divisors is an integer number (158529239316).

Almost surely, 2^{1112221012123} is an apocalyptic number.

1112221012123 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1112221012123 is a deficient number, since it is larger than the sum of its proper divisors (156012902405).

1112221012123 is a wasteful number, since it uses less digits than its factorization.

1112221012123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5032674293.

The product of its (nonzero) digits is 96, while the sum is 19.

Adding to 1112221012123 its reverse (3212101222111), we get a palindrome (4324322234234).

The spelling of 1112221012123 in words is "one trillion, one hundred twelve billion, two hundred twenty-one million, twelve thousand, one hundred twenty-three".