13130221220 has 24 divisors (see below), whose sum is σ = 27575722944. Its totient is φ = 5251658336.

The previous prime is 13130221171. The next prime is 13130221243. The reversal of 13130221220 is 2212203131.

13130221220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×13130221220² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 357347 + ... + 392373.

It is an arithmetic number, because the mean of its divisors is an integer number (1148988456).

Almost surely, 2^13130221220 is an apocalyptic number.

13130221220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13130221220 is an abundant number, since it is smaller than the sum of its proper divisors (14445501724).

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

13130221220 is a wasteful number, since it uses less digits than its factorization.

13130221220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53779 (or 53777 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 13130221220 its reverse (2212203131), we get a palindrome (15342424351).

The spelling of 13130221220 in words is "thirteen billion, one hundred thirty million, two hundred twenty-one thousand, two hundred twenty".