11003212103220 has 144 divisors (see below), whose sum is σ = 33514340670720. Its totient is φ = 2922089119488.

The previous prime is 11003212103207. The next prime is 11003212103281. The reversal of 11003212103220 is 2230121230011.

11003212103220 is a `hidden beast` number, since 1 + 1 + 0 + 0 + 321 + 21 + 0 + 322 + 0 = 666.

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 = 11003212103193 and 11003212103202.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 42290367 + ... + 42549753.

It is an arithmetic number, because the mean of its divisors is an integer number (232738476880).

Almost surely, 2^{11003212103220} is an apocalyptic number.

11003212103220 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 11003212103220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16757170335360).

11003212103220 is an abundant number, since it is smaller than the sum of its proper divisors (22511128567500).

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

11003212103220 is a wasteful number, since it uses less digits than its factorization.

11003212103220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 260374 (or 260369 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 11003212103220 its reverse (2230121230011), we get a palindrome (13233333333231).

The spelling of 11003212103220 in words is "eleven trillion, three billion, two hundred twelve million, one hundred three thousand, two hundred twenty".