11011003220 has 48 divisors (see below), whose sum is σ = 26512590720. Its totient is φ = 3762889344.

The previous prime is 11011003153. The next prime is 11011003229. The reversal of 11011003220 is 2230011011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11011003229) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 85115 + ... + 171074.

It is an arithmetic number, because the mean of its divisors is an integer number (552345640).

Almost surely, 2^11011003220 is an apocalyptic number.

11011003220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11011003220 is an abundant number, since it is smaller than the sum of its proper divisors (15501587500).

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

11011003220 is a wasteful number, since it uses less digits than its factorization.

11011003220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 256512 (or 256510 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 11.

Adding to 11011003220 its reverse (2230011011), we get a palindrome (13241014231).

The spelling of 11011003220 in words is "eleven billion, eleven million, three thousand, two hundred twenty".