1112222345678 has 16 divisors (see below), whose sum is σ = 1716563664816. Its totient is φ = 540177361920.

The previous prime is 1112222345677. The next prime is 1112222345713. The reversal of 1112222345678 is 8765432222111.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a plaindrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1112222345677) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35710451 + ... + 35741582.

It is an arithmetic number, because the mean of its divisors is an integer number (107285229051).

Almost surely, 2^{1112222345678} is an apocalyptic number.

1112222345678 is a deficient number, since it is larger than the sum of its proper divisors (604341319138).

1112222345678 is a wasteful number, since it uses less digits than its factorization.

1112222345678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71452259.

The product of its digits is 322560, while the sum is 44.

Adding to 1112222345678 its reverse (8765432222111), we get a palindrome (9877654567789).

The spelling of 1112222345678 in words is "one trillion, one hundred twelve billion, two hundred twenty-two million, three hundred forty-five thousand, six hundred seventy-eight".