13212220220 has 12 divisors (see below), whose sum is σ = 27745662504. Its totient is φ = 5284888080.

The previous prime is 13212220207. The next prime is 13212220223. The reversal of 13212220220 is 2202221231.

13212220220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13212220223) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 330305486 + ... + 330305525.

It is an arithmetic number, because the mean of its divisors is an integer number (2312138542).

Almost surely, 2^13212220220 is an apocalyptic number.

13212220220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13212220220 is an abundant number, since it is smaller than the sum of its proper divisors (14533442284).

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

13212220220 is a wasteful number, since it uses less digits than its factorization.

13212220220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 660611020 (or 660611018 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 13212220220 its reverse (2202221231), we get a palindrome (15414441451).

The spelling of 13212220220 in words is "thirteen billion, two hundred twelve million, two hundred twenty thousand, two hundred twenty".