11123003212220 has 24 divisors (see below), whose sum is σ = 23421953373504. Its totient is φ = 4437078117696.

The previous prime is 11123003212171. The next prime is 11123003212271. The reversal of 11123003212220 is 2221230032111.

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

It is a junction number, because it is equal to n+sod(n) for n = 11123003212192 and 11123003212201.

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 7 ways as a sum of consecutive naturals, for example, 757690427 + ... + 757705106.

It is an arithmetic number, because the mean of its divisors is an integer number (975914723896).

Almost surely, 2^{11123003212220} is an apocalyptic number.

11123003212220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11123003212220 is an abundant number, since it is smaller than the sum of its proper divisors (12298950161284).

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

11123003212220 is a wasteful number, since it uses less digits than its factorization.

11123003212220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1515395909 (or 1515395907 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 11123003212220 its reverse (2221230032111), we get a palindrome (13344233244331).

The spelling of 11123003212220 in words is "eleven trillion, one hundred twenty-three billion, three million, two hundred twelve thousand, two hundred twenty".