13220401134012 has 24 divisors (see below), whose sum is σ = 31165619170896. Its totient is φ = 4361369445888.

The previous prime is 13220401134011. The next prime is 13220401134029. The reversal of 13220401134012 is 21043110402231.

It is a super-2 number, since 2×13220401134012² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13220401134011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5678865303 + ... + 5678867630.

It is an arithmetic number, because the mean of its divisors is an integer number (1298567465454).

Almost surely, 2^{13220401134012} is an apocalyptic number.

13220401134012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13220401134012 is an abundant number, since it is smaller than the sum of its proper divisors (17945218036884).

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

13220401134012 is a wasteful number, since it uses less digits than its factorization.

13220401134012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11357733037 (or 11357733035 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 13220401134012 its reverse (21043110402231), we get a palindrome (34263511536243).

The spelling of 13220401134012 in words is "thirteen trillion, two hundred twenty billion, four hundred one million, one hundred thirty-four thousand, twelve".