13220204340322 has 48 divisors (see below), whose sum is σ = 24283303403040. Its totient is φ = 5367315405312.

The previous prime is 13220204340319. The next prime is 13220204340323. The reversal of 13220204340322 is 22304340202231.

It is not an unprimeable number, because it can be changed into a prime (13220204340323) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 36645273 + ... + 37004275.

It is an arithmetic number, because the mean of its divisors is an integer number (505902154230).

Almost surely, 2^{13220204340322} is an apocalyptic number.

13220204340322 is a deficient number, since it is larger than the sum of its proper divisors (11063099062718).

13220204340322 is a wasteful number, since it uses less digits than its factorization.

13220204340322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 378815 (or 378808 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 28.

Adding to 13220204340322 its reverse (22304340202231), we get a palindrome (35524544542553).

The spelling of 13220204340322 in words is "thirteen trillion, two hundred twenty billion, two hundred four million, three hundred forty thousand, three hundred twenty-two".