13405504112220 has 96 divisors (see below), whose sum is σ = 40952661797376. Its totient is φ = 3249427104000.

The previous prime is 13405504112219. The next prime is 13405504112233. The reversal of 13405504112220 is 2221140550431.

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, 4268145 + ... + 6710295.

It is an arithmetic number, because the mean of its divisors is an integer number (426590227056).

Almost surely, 2^{13405504112220} is an apocalyptic number.

13405504112220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13405504112220 is an abundant number, since it is smaller than the sum of its proper divisors (27547157685156).

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

13405504112220 is a wasteful number, since it uses less digits than its factorization.

13405504112220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2450491 (or 2450489 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 30.

Adding to 13405504112220 its reverse (2221140550431), we get a palindrome (15626644662651).

The spelling of 13405504112220 in words is "thirteen trillion, four hundred five billion, five hundred four million, one hundred twelve thousand, two hundred twenty".