11321002112220 has 288 divisors, whose sum is σ = 38070950037120. Its totient is φ = 2712745728000.

The previous prime is 11321002112219. The next prime is 11321002112347. The reversal of 11321002112220 is 2221120012311.

11321002112220 is a `hidden beast` number, since 1 + 132 + 100 + 211 + 2 + 220 = 666.

11321002112220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 11321002112193 and 11321002112202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 3167970 + ... + 5716470.

It is an arithmetic number, because the mean of its divisors is an integer number (132190798740).

Almost surely, 2^{11321002112220} is an apocalyptic number.

11321002112220 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 11321002112220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19035475018560).

11321002112220 is an abundant number, since it is smaller than the sum of its proper divisors (26749947924900).

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

11321002112220 is a wasteful number, since it uses less digits than its factorization.

11321002112220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2548605 (or 2548600 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 11321002112220 its reverse (2221120012311), we get a palindrome (13542122124531).

The spelling of 11321002112220 in words is "eleven trillion, three hundred twenty-one billion, two million, one hundred twelve thousand, two hundred twenty".