1135221320000 has 140 divisors (see below), whose sum is σ = 2826781890240. Its totient is φ = 452184768000.

The previous prime is 1135221319987. The next prime is 1135221320117. The reversal of 1135221320000 is 231225311.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 9500627 + ... + 9619373.

It is an arithmetic number, because the mean of its divisors is an integer number (20191299216).

Almost surely, 2^{1135221320000} is an apocalyptic number.

1135221320000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1135221320000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1413390945120).

1135221320000 is an abundant number, since it is smaller than the sum of its proper divisors (1691560570240).

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

1135221320000 is an equidigital number, since it uses as much as digits as its factorization.

1135221320000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119018 (or 118993 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 20.

Adding to 1135221320000 its reverse (231225311), we get a palindrome (1135452545311).

The spelling of 1135221320000 in words is "one trillion, one hundred thirty-five billion, two hundred twenty-one million, three hundred twenty thousand".