1112225779 has 4 divisors (see below), whose sum is σ = 1271115184. Its totient is φ = 953336376.

The previous prime is 1112225767. The next prime is 1112225783. The reversal of 1112225779 is 9775222111.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9775222111 = 23 ⋅425009657.

It is a cyclic number.

It is not a de Polignac number, because 1112225779 - 2²¹ = 1110128627 is a prime.

It is a Duffinian number.

It is a plaindrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (1112325779) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 79444692 + ... + 79444705.

It is an arithmetic number, because the mean of its divisors is an integer number (317778796).

Almost surely, 2^1112225779 is an apocalyptic number.

1112225779 is a deficient number, since it is larger than the sum of its proper divisors (158889405).

1112225779 is an equidigital number, since it uses as much as digits as its factorization.

1112225779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158889404.

The product of its digits is 17640, while the sum is 37.

The square root of 1112225779 is about 33350.0491603836. The cubic root of 1112225779 is about 1036.0904061249.

The spelling of 1112225779 in words is "one billion, one hundred twelve million, two hundred twenty-five thousand, seven hundred seventy-nine".