13043445221200 has 60 divisors (see below), whose sum is σ = 33180222875580. Its totient is φ = 4910473492480.

The previous prime is 13043445221189. The next prime is 13043445221273. The reversal of 13043445221200 is 212254434031.

It can be written as a sum of positive squares in 6 ways, for example, as 798792637504 + 12244652583696 = 893752^2 + 3499236^2 .

It is a congruent number.

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, 959070055 + ... + 959083654.

It is an arithmetic number, because the mean of its divisors is an integer number (553003714593).

Almost surely, 2^{13043445221200} is an apocalyptic number.

13043445221200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13043445221200 is an abundant number, since it is smaller than the sum of its proper divisors (20136777654380).

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

13043445221200 is a wasteful number, since it uses less digits than its factorization.

13043445221200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1918153744 (or 1918153733 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 31.

Adding to 13043445221200 its reverse (212254434031), we get a palindrome (13255699655231).

The spelling of 13043445221200 in words is "thirteen trillion, forty-three billion, four hundred forty-five million, two hundred twenty-one thousand, two hundred".