1115543222 has 8 divisors (see below), whose sum is σ = 1696237176. Its totient is φ = 550130832.

The previous prime is 1115543189. The next prime is 1115543227. The reversal of 1115543222 is 2223455111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 1115543191 and 1115543200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1115543227) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3820208 + ... + 3820499.

It is an arithmetic number, because the mean of its divisors is an integer number (212029647).

Almost surely, 2^1115543222 is an apocalyptic number.

1115543222 is a deficient number, since it is larger than the sum of its proper divisors (580693954).

1115543222 is an equidigital number, since it uses as much as digits as its factorization.

1115543222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7640782.

The product of its digits is 2400, while the sum is 26.

The square root of 1115543222 is about 33399.7488313909. The cubic root of 1115543222 is about 1037.1195014832.

Adding to 1115543222 its reverse (2223455111), we get a palindrome (3338998333).

The spelling of 1115543222 in words is "one billion, one hundred fifteen million, five hundred forty-three thousand, two hundred twenty-two".