13200011220 has 96 divisors (see below), whose sum is σ = 41409841536. Its totient is φ = 3113510400.

The previous prime is 13200011179. The next prime is 13200011263. The reversal of 13200011220 is 2211000231.

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 = 13200011196 and 13200011205.

It is a congruent number.

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, 245851 + ... + 294690.

It is an arithmetic number, because the mean of its divisors is an integer number (431352516).

Almost surely, 2^13200011220 is an apocalyptic number.

13200011220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13200011220 is an abundant number, since it is smaller than the sum of its proper divisors (28209830316).

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

13200011220 is a wasteful number, since it uses less digits than its factorization.

13200011220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 540601 (or 540599 counting only the distinct ones).

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

Adding to 13200011220 its reverse (2211000231), we get a palindrome (15411011451).

It can be divided in two parts, 13200011 and 220, that added together give a palindrome (13200231).

The spelling of 13200011220 in words is "thirteen billion, two hundred million, eleven thousand, two hundred twenty".