1121100208 has 20 divisors (see below), whose sum is σ = 2183163840. Its totient is φ = 557703104.

The previous prime is 1121100193. The next prime is 1121100289. The reversal of 1121100208 is 8020011211.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a junction number, because it is equal to n+sod(n) for n = 1121100191 and 1121100200.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 174688 + ... + 180991.

It is an arithmetic number, because the mean of its divisors is an integer number (109158192).

Almost surely, 2^1121100208 is an apocalyptic number.

It is an amenable number.

1121100208 is a deficient number, since it is larger than the sum of its proper divisors (1062063632).

1121100208 is a wasteful number, since it uses less digits than its factorization.

1121100208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 355884 (or 355878 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

The square root of 1121100208 is about 33482.8345275605. The cubic root of 1121100208 is about 1038.8387581052.

Adding to 1121100208 its reverse (8020011211), we get a palindrome (9141111419).

The spelling of 1121100208 in words is "one billion, one hundred twenty-one million, one hundred thousand, two hundred eight".