1121055204 has 24 divisors (see below), whose sum is σ = 2705996160. Its totient is φ = 360799264.

The previous prime is 1121055197. The next prime is 1121055239. The reversal of 1121055204 is 4025501211.

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, 1610364 + ... + 1611059.

It is an arithmetic number, because the mean of its divisors is an integer number (112749840).

Almost surely, 2^1121055204 is an apocalyptic number.

It is an amenable number.

1121055204 is an abundant number, since it is smaller than the sum of its proper divisors (1584940956).

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

1121055204 is a wasteful number, since it uses less digits than its factorization.

1121055204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3221459 (or 3221457 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 21.

The square root of 1121055204 is about 33482.1624749657. The cubic root of 1121055204 is about 1038.8248573184.

Adding to 1121055204 its reverse (4025501211), we get a palindrome (5146556415).

The spelling of 1121055204 in words is "one billion, one hundred twenty-one million, fifty-five thousand, two hundred four".