13420812084228 has 36 divisors (see below), whose sum is σ = 33925607088828. Its totient is φ = 4473501626880.

The previous prime is 13420812084203. The next prime is 13420812084283. The reversal of 13420812084228 is 82248021802431.

13420812084228 is a `hidden beast` number, since 1 + 3 + 4 + 208 + 12 + 0 + 8 + 422 + 8 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 4747657503744 + 8673154580484 = 2178912^2 + 2945022^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-3 number, since 3×13420812084228³ (a number of 40 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2663893 + ... + 5825628.

Almost surely, 2^{13420812084228} is an apocalyptic number.

13420812084228 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

13420812084228 is an abundant number, since it is smaller than the sum of its proper divisors (20504795004600).

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

13420812084228 is a wasteful number, since it uses less digits than its factorization.

13420812084228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8533444 (or 8533439 counting only the distinct ones).

The product of its (nonzero) digits is 393216, while the sum is 45.

Adding to 13420812084228 its reverse (82248021802431), we get a palindrome (95668833886659).

The spelling of 13420812084228 in words is "thirteen trillion, four hundred twenty billion, eight hundred twelve million, eighty-four thousand, two hundred twenty-eight".