11331111332220 has 192 divisors, whose sum is σ = 32297026191360. Its totient is φ = 2967634568448.

The previous prime is 11331111332197. The next prime is 11331111332221. The reversal of 11331111332220 is 2223311113311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11331111332221) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2856340677 + ... + 2856344643.

It is an arithmetic number, because the mean of its divisors is an integer number (168213678080).

Almost surely, 2^{11331111332220} is an apocalyptic number.

11331111332220 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 11331111332220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16148513095680).

11331111332220 is an abundant number, since it is smaller than the sum of its proper divisors (20965914859140).

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

11331111332220 is a wasteful number, since it uses less digits than its factorization.

11331111332220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5992 (or 5990 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 24.

Adding to 11331111332220 its reverse (2223311113311), we get a palindrome (13554422445531).

The spelling of 11331111332220 in words is "eleven trillion, three hundred thirty-one billion, one hundred eleven million, three hundred thirty-two thousand, two hundred twenty".