1121216176 has 60 divisors (see below), whose sum is σ = 2268307944. Its totient is φ = 536569600.

The previous prime is 1121216149. The next prime is 1121216179. The reversal of 1121216176 is 6716121211.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121216179) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2283291 + ... + 2283781.

Almost surely, 2^1121216176 is an apocalyptic number.

1121216176 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1121216176 is an abundant number, since it is smaller than the sum of its proper divisors (1147091768).

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

1121216176 is an equidigital number, since it uses as much as digits as its factorization.

1121216176 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 658 (or 593 counting only the distinct ones).

The product of its digits is 1008, while the sum is 28.

The square root of 1121216176 is about 33484.5662358048. The cubic root of 1121216176 is about 1038.8745764613.

Adding to 1121216176 its reverse (6716121211), we get a palindrome (7837337387).

The spelling of 1121216176 in words is "one billion, one hundred twenty-one million, two hundred sixteen thousand, one hundred seventy-six".