1121021330 has 32 divisors (see below), whose sum is σ = 2370610368. Its totient is φ = 376286400.

The previous prime is 1121021281. The next prime is 1121021333. The reversal of 1121021330 is 331201211.

It is not an unprimeable number, because it can be changed into a prime (1121021333) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 390536 + ... + 393395.

It is an arithmetic number, because the mean of its divisors is an integer number (74081574).

Almost surely, 2^1121021330 is an apocalyptic number.

1121021330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1121021330 is an abundant number, since it is smaller than the sum of its proper divisors (1249589038).

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

1121021330 is a wasteful number, since it uses less digits than its factorization.

1121021330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 783962.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 1121021330 is about 33481.6566197075. The cubic root of 1121021330 is about 1038.8143941085.

Adding to 1121021330 its reverse (331201211), we get a palindrome (1452222541).

The spelling of 1121021330 in words is "one billion, one hundred twenty-one million, twenty-one thousand, three hundred thirty".