13001011220 has 24 divisors (see below), whose sum is σ = 27883021824. Its totient is φ = 5089757216.

The previous prime is 13001011213. The next prime is 13001011223. The reversal of 13001011220 is 2211010031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13001011223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6914492 + ... + 6916371.

It is an arithmetic number, because the mean of its divisors is an integer number (1161792576).

Almost surely, 2^13001011220 is an apocalyptic number.

13001011220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13001011220 is an abundant number, since it is smaller than the sum of its proper divisors (14882010604).

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

13001011220 is a wasteful number, since it uses less digits than its factorization.

13001011220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13830919 (or 13830917 counting only the distinct ones).

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

Adding to 13001011220 its reverse (2211010031), we get a palindrome (15212021251).

The spelling of 13001011220 in words is "thirteen billion, one million, eleven thousand, two hundred twenty".