1121221332320 has 24 divisors (see below), whose sum is σ = 2648885397984. Its totient is φ = 448488532864.

The previous prime is 1121221332277. The next prime is 1121221332353. The reversal of 1121221332320 is 232331221211.

It is a congruent number.

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, 3503816504 + ... + 3503816823.

It is an arithmetic number, because the mean of its divisors is an integer number (110370224916).

Almost surely, 2^{1121221332320} is an apocalyptic number.

1121221332320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1121221332320 is an abundant number, since it is smaller than the sum of its proper divisors (1527664065664).

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

1121221332320 is an equidigital number, since it uses as much as digits as its factorization.

1121221332320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7007633342 (or 7007633334 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 1121221332320 its reverse (232331221211), we get a palindrome (1353552553531).

It can be divided in two parts, 1121221 and 332320, that added together give a palindrome (1453541).

The spelling of 1121221332320 in words is "one trillion, one hundred twenty-one billion, two hundred twenty-one million, three hundred thirty-two thousand, three hundred twenty".