1121055232 has 80 divisors (see below), whose sum is σ = 2522767104. Its totient is φ = 493056000.

The previous prime is 1121055197. The next prime is 1121055239. The reversal of 1121055232 is 2325501211.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (1121055239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 171382 + ... + 177802.

Almost surely, 2^1121055232 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1121055232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1261383552).

1121055232 is an abundant number, since it is smaller than the sum of its proper divisors (1401711872).

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

1121055232 is an equidigital number, since it uses as much as digits as its factorization.

1121055232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6481 (or 6465 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 22.

The square root of 1121055232 is about 33482.1628930988. The cubic root of 1121055232 is about 1038.8248659671.

Adding to 1121055232 its reverse (2325501211), we get a palindrome (3446556443).

The spelling of 1121055232 in words is "one billion, one hundred twenty-one million, fifty-five thousand, two hundred thirty-two".