1112219988 has 24 divisors (see below), whose sum is σ = 2831105760. Its totient is φ = 337036320.

The previous prime is 1112219987. The next prime is 1112220017. The reversal of 1112219988 is 8899122111.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1112219981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4212823 + ... + 4213086.

It is an arithmetic number, because the mean of its divisors is an integer number (117962740).

Almost surely, 2^1112219988 is an apocalyptic number.

It is an amenable number.

1112219988 is an abundant number, since it is smaller than the sum of its proper divisors (1718885772).

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

1112219988 is a wasteful number, since it uses less digits than its factorization.

1112219988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8425927 (or 8425925 counting only the distinct ones).

The product of its digits is 20736, while the sum is 42.

The square root of 1112219988 is about 33349.9623388093. The cubic root of 1112219988 is about 1036.0886079259.

The spelling of 1112219988 in words is "one billion, one hundred twelve million, two hundred nineteen thousand, nine hundred eighty-eight".