1112223567778 has 16 divisors (see below), whose sum is σ = 1671065625600. Its totient is φ = 555202418400.

The previous prime is 1112223567743. The next prime is 1112223567779. The reversal of 1112223567778 is 8777653222111.

It is a plaindrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (1112223567779) 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, 2905963 + ... + 3266353.

It is an arithmetic number, because the mean of its divisors is an integer number (104441601600).

Almost surely, 2^{1112223567778} is an apocalyptic number.

1112223567778 is a deficient number, since it is larger than the sum of its proper divisors (558842057822).

1112223567778 is a wasteful number, since it uses less digits than its factorization.

1112223567778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 362913.

The product of its digits is 1975680, while the sum is 52.

Adding to 1112223567778 its reverse (8777653222111), we get a palindrome (9889876789889).

The spelling of 1112223567778 in words is "one trillion, one hundred twelve billion, two hundred twenty-three million, five hundred sixty-seven thousand, seven hundred seventy-eight".