1117121216 has 14 divisors (see below), whose sum is σ = 2216787540. Its totient is φ = 558560576.

The previous prime is 1117121197. The next prime is 1117121237. The reversal of 1117121216 is 6121217111.

It is a super-2 number, since 2×1117121216² = 2495919622474637312, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1117121191 and 1117121200.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 8727446 + ... + 8727573.

Almost surely, 2^1117121216 is an apocalyptic number.

1117121216 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1117121216 is a deficient number, since it is larger than the sum of its proper divisors (1099666324).

1117121216 is an equidigital number, since it uses as much as digits as its factorization.

1117121216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17455031 (or 17455021 counting only the distinct ones).

The product of its digits is 168, while the sum is 23.

The square root of 1117121216 is about 33423.3633256739. The cubic root of 1117121216 is about 1037.6082909368.

Adding to 1117121216 its reverse (6121217111), we get a palindrome (7238338327).

The spelling of 1117121216 in words is "one billion, one hundred seventeen million, one hundred twenty-one thousand, two hundred sixteen".