1121204441 has 8 divisors (see below), whose sum is σ = 1290596160. Its totient is φ = 954117648.

The previous prime is 1121204393. The next prime is 1121204443. The reversal of 1121204441 is 1444021211.

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

It is a cyclic number.

It is not a de Polignac number, because 1121204441 - 2³⁰ = 47462617 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1121204443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 575186 + ... + 577131.

It is an arithmetic number, because the mean of its divisors is an integer number (161324520).

Almost surely, 2^1121204441 is an apocalyptic number.

It is an amenable number.

1121204441 is a deficient number, since it is larger than the sum of its proper divisors (169391719).

1121204441 is a wasteful number, since it uses less digits than its factorization.

1121204441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1152463.

The product of its (nonzero) digits is 256, while the sum is 20.

The square root of 1121204441 is about 33484.3910053625. The cubic root of 1121204441 is about 1038.8709520530.

Adding to 1121204441 its reverse (1444021211), we get a palindrome (2565225652).

The spelling of 1121204441 in words is "one billion, one hundred twenty-one million, two hundred four thousand, four hundred forty-one".