11321222012240 has 160 divisors (see below), whose sum is σ = 30227599595520. Its totient is φ = 3862832601600.

The previous prime is 11321222012239. The next prime is 11321222012251. The reversal of 11321222012240 is 4221022212311.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 98653295 + ... + 98767985.

It is an arithmetic number, because the mean of its divisors is an integer number (188922497472).

Almost surely, 2^{11321222012240} is an apocalyptic number.

11321222012240 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 11321222012240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15113799797760).

11321222012240 is an abundant number, since it is smaller than the sum of its proper divisors (18906377583280).

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

11321222012240 is a wasteful number, since it uses less digits than its factorization.

11321222012240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115561 (or 115555 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 11321222012240 its reverse (4221022212311), we get a palindrome (15542244224551).

The spelling of 11321222012240 in words is "eleven trillion, three hundred twenty-one billion, two hundred twenty-two million, twelve thousand, two hundred forty".