13144413122220 has 48 divisors (see below), whose sum is σ = 36808717317120. Its totient is φ = 3504761539776.

The previous prime is 13144413122161. The next prime is 13144413122327. The reversal of 13144413122220 is 2222131444131.

It is a happy number.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12467100 + ... + 13480259.

It is an arithmetic number, because the mean of its divisors is an integer number (766848277440).

Almost surely, 2^{13144413122220} is an apocalyptic number.

13144413122220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13144413122220 is an abundant number, since it is smaller than the sum of its proper divisors (23664304194900).

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

13144413122220 is a wasteful number, since it uses less digits than its factorization.

13144413122220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25955814 (or 25955812 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 30.

Adding to 13144413122220 its reverse (2222131444131), we get a palindrome (15366544566351).

The spelling of 13144413122220 in words is "thirteen trillion, one hundred forty-four billion, four hundred thirteen million, one hundred twenty-two thousand, two hundred twenty".