13221231210 has 64 divisors (see below), whose sum is σ = 38461772160. Its totient is φ = 3205146240.

The previous prime is 13221231209. The next prime is 13221231223. The reversal of 13221231210 is 1213212231.

13221231210 is a `hidden beast` number, since 1 + 3 + 221 + 231 + 210 = 666.

13221231210 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

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 31 ways as a sum of consecutive naturals, for example, 2222827 + ... + 2228766.

It is an arithmetic number, because the mean of its divisors is an integer number (600965190).

Almost surely, 2^13221231210 is an apocalyptic number.

13221231210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13221231210 is an abundant number, since it is smaller than the sum of its proper divisors (25240540950).

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

13221231210 is a wasteful number, since it uses less digits than its factorization.

13221231210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4451620 (or 4451614 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 13221231210 its reverse (1213212231), we get a palindrome (14434443441).

The spelling of 13221231210 in words is "thirteen billion, two hundred twenty-one million, two hundred thirty-one thousand, two hundred ten".