1115350220 has 24 divisors (see below), whose sum is σ = 2353345008. Its totient is φ = 444024000.

The previous prime is 1115350207. The next prime is 1115350231. The reversal of 1115350220 is 220535111.

It is a happy number.

It is a super-2 number, since 2×1115350220² = 2488012226508096800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 1115350192 and 1115350201.

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, 127931 + ... + 136370.

It is an arithmetic number, because the mean of its divisors is an integer number (98056042).

Almost surely, 2^1115350220 is an apocalyptic number.

1115350220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1115350220 is an abundant number, since it is smaller than the sum of its proper divisors (1237994788).

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

1115350220 is a wasteful number, since it uses less digits than its factorization.

1115350220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 264521 (or 264519 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 20.

The square root of 1115350220 is about 33396.8594331862. The cubic root of 1115350220 is about 1037.0596867732.

Adding to 1115350220 its reverse (220535111), we get a palindrome (1335885331).

The spelling of 1115350220 in words is "one billion, one hundred fifteen million, three hundred fifty thousand, two hundred twenty".