1115221514 has 16 divisors (see below), whose sum is σ = 1874231136. Its totient is φ = 493218000.

The previous prime is 1115221489. The next prime is 1115221537. The reversal of 1115221514 is 4151225111.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1115221514.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 684212 + ... + 685839.

It is an arithmetic number, because the mean of its divisors is an integer number (117139446).

Almost surely, 2^1115221514 is an apocalyptic number.

1115221514 is a deficient number, since it is larger than the sum of its proper divisors (759009622).

1115221514 is a wasteful number, since it uses less digits than its factorization.

1115221514 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1370101.

The product of its digits is 400, while the sum is 23.

The square root of 1115221514 is about 33394.9324598808. The cubic root of 1115221514 is about 1037.0197946878.

Adding to 1115221514 its reverse (4151225111), we get a palindrome (5266446625).

The spelling of 1115221514 in words is "one billion, one hundred fifteen million, two hundred twenty-one thousand, five hundred fourteen".