13320201221989 has 2 divisors, whose sum is σ = 13320201221990. Its totient is φ = 13320201221988.

The previous prime is 13320201221981. The next prime is 13320201222037. The reversal of 13320201221989 is 98912210202331.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7298291356225 + 6021909865764 = 2701535^2 + 2453958^2 .

It is a cyclic number.

It is not a de Polignac number, because 13320201221989 - 2³ = 13320201221981 is a prime.

It is a super-2 number, since 2×13320201221989² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13320201221981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6660100610994 + 6660100610995.

It is an arithmetic number, because the mean of its divisors is an integer number (6660100610995).

Almost surely, 2^{13320201221989} is an apocalyptic number.

It is an amenable number.

13320201221989 is a deficient number, since it is larger than the sum of its proper divisors (1).

13320201221989 is an equidigital number, since it uses as much as digits as its factorization.

13320201221989 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 93312, while the sum is 43.

The spelling of 13320201221989 in words is "thirteen trillion, three hundred twenty billion, two hundred one million, two hundred twenty-one thousand, nine hundred eighty-nine".