13220155345322 has 4 divisors (see below), whose sum is σ = 19830233017986. Its totient is φ = 6610077672660.

The previous prime is 13220155345289. The next prime is 13220155345361. The reversal of 13220155345322 is 22354355102231.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 7571076930481 + 5649078414841 = 2751559^2 + 2376779^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 3305038836329 + ... + 3305038836332.

Almost surely, 2^{13220155345322} is an apocalyptic number.

13220155345322 is a deficient number, since it is larger than the sum of its proper divisors (6610077672664).

13220155345322 is an equidigital number, since it uses as much as digits as its factorization.

13220155345322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6610077672663.

The product of its (nonzero) digits is 216000, while the sum is 38.

The spelling of 13220155345322 in words is "thirteen trillion, two hundred twenty billion, one hundred fifty-five million, three hundred forty-five thousand, three hundred twenty-two".