13321010221000 has 32 divisors (see below), whose sum is σ = 31171163919480. Its totient is φ = 5328404088000.

The previous prime is 13321010220979. The next prime is 13321010221009. The reversal of 13321010221000 is 12201012331.

It can be written as a sum of positive squares in 4 ways, for example, as 2974224464836 + 10346785756164 = 1724594^2 + 3216642^2 .

It is not an unprimeable number, because it can be changed into a prime (13321010221009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6660504111 + ... + 6660506110.

Almost surely, 2^{13321010221000} is an apocalyptic number.

13321010221000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13321010221000 is an abundant number, since it is smaller than the sum of its proper divisors (17850153698480).

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

13321010221000 is a wasteful number, since it uses less digits than its factorization.

13321010221000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13321010242 (or 13321010228 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 13321010221000 its reverse (12201012331), we get a palindrome (13333211233331).

The spelling of 13321010221000 in words is "thirteen trillion, three hundred twenty-one billion, ten million, two hundred twenty-one thousand".