11011000201220 has 72 divisors (see below), whose sum is σ = 24745668292800. Its totient is φ = 4104185915520.

The previous prime is 11011000201199. The next prime is 11011000201231. The reversal of 11011000201220 is 2210200011011.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2479640 + ... + 5307599.

It is an arithmetic number, because the mean of its divisors is an integer number (343689837400).

Almost surely, 2^{11011000201220} is an apocalyptic number.

11011000201220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11011000201220 is an abundant number, since it is smaller than the sum of its proper divisors (13734668091580).

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

11011000201220 is a wasteful number, since it uses less digits than its factorization.

11011000201220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7787389 (or 7787326 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 11011000201220 its reverse (2210200011011), we get a palindrome (13221200212231).

The spelling of 11011000201220 in words is "eleven trillion, eleven billion, two hundred one thousand, two hundred twenty".