13415221131420 has 96 divisors (see below), whose sum is σ = 37786030551360. Its totient is φ = 3556131655680.

The previous prime is 13415221131173. The next prime is 13415221131443. The reversal of 13415221131420 is 2413112251431.

It is a super-2 number, since 2×13415221131420² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 25686004 + ... + 26203076.

It is an arithmetic number, because the mean of its divisors is an integer number (393604484910).

Almost surely, 2^{13415221131420} is an apocalyptic number.

13415221131420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13415221131420 is an abundant number, since it is smaller than the sum of its proper divisors (24370809419940).

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

13415221131420 is a wasteful number, since it uses less digits than its factorization.

13415221131420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 519655 (or 519653 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 30.

Adding to 13415221131420 its reverse (2413112251431), we get a palindrome (15828333382851).

The spelling of 13415221131420 in words is "thirteen trillion, four hundred fifteen billion, two hundred twenty-one million, one hundred thirty-one thousand, four hundred twenty".