13220620131012 has 24 divisors (see below), whose sum is σ = 35254987016256. Its totient is φ = 3777320037408.

The previous prime is 13220620131011. The next prime is 13220620131067. The reversal of 13220620131012 is 21013102602231.

It is not an unprimeable number, because it can be changed into a prime (13220620131011) 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, 78694167363 + ... + 78694167530.

It is an arithmetic number, because the mean of its divisors is an integer number (1468957792344).

Almost surely, 2^{13220620131012} is an apocalyptic number.

13220620131012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13220620131012 is an abundant number, since it is smaller than the sum of its proper divisors (22034366885244).

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

13220620131012 is a wasteful number, since it uses less digits than its factorization.

13220620131012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157388334907 (or 157388334905 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 24.

Adding to 13220620131012 its reverse (21013102602231), we get a palindrome (34233722733243).

The spelling of 13220620131012 in words is "thirteen trillion, two hundred twenty billion, six hundred twenty million, one hundred thirty-one thousand, twelve".