11003201220 has 96 divisors (see below), whose sum is σ = 33628484736. Its totient is φ = 2665958400.

The previous prime is 11003201213. The next prime is 11003201239. The reversal of 11003201220 is 2210230011.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 11003201196 and 11003201205.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1605000 + ... + 1611840.

It is an arithmetic number, because the mean of its divisors is an integer number (350296716).

Almost surely, 2^11003201220 is an apocalyptic number.

11003201220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11003201220 is an abundant number, since it is smaller than the sum of its proper divisors (22625283516).

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

11003201220 is a wasteful number, since it uses less digits than its factorization.

11003201220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9301 (or 9299 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 11003201220 its reverse (2210230011), we get a palindrome (13213431231).

The spelling of 11003201220 in words is "eleven billion, three million, two hundred one thousand, two hundred twenty".