1116021015 has 48 divisors (see below), whose sum is σ = 2052086400. Its totient is φ = 559143936.

The previous prime is 1116021001. The next prime is 1116021037. The reversal of 1116021015 is 5101206111.

It is a happy number.

It is not a de Polignac number, because 1116021015 - 2⁴ = 1116020999 is a prime.

It is a congruent number.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 549021 + ... + 551049.

It is an arithmetic number, because the mean of its divisors is an integer number (42751800).

Almost surely, 2^1116021015 is an apocalyptic number.

1116021015 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1116021015 is a deficient number, since it is larger than the sum of its proper divisors (936065385).

1116021015 is a wasteful number, since it uses less digits than its factorization.

1116021015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2776 (or 2773 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 18.

The square root of 1116021015 is about 33406.9007092846. The cubic root of 1116021015 is about 1037.2675482521.

Adding to 1116021015 its reverse (5101206111), we get a palindrome (6217227126).

The spelling of 1116021015 in words is "one billion, one hundred sixteen million, twenty-one thousand, fifteen".