1320553555222 has 16 divisors (see below), whose sum is σ = 2166038625744. Its totient is φ = 598825836000.

The previous prime is 1320553555201. The next prime is 1320553555229. The reversal of 1320553555222 is 2225553550231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1320553555229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71279529 + ... + 71298052.

It is an arithmetic number, because the mean of its divisors is an integer number (135377414109).

Almost surely, 2^{1320553555222} is an apocalyptic number.

1320553555222 is a deficient number, since it is larger than the sum of its proper divisors (845485070522).

1320553555222 is a wasteful number, since it uses less digits than its factorization.

1320553555222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142578015.

The product of its (nonzero) digits is 450000, while the sum is 40.

The spelling of 1320553555222 in words is "one trillion, three hundred twenty billion, five hundred fifty-three million, five hundred fifty-five thousand, two hundred twenty-two".