133111330143221 has 2 divisors, whose sum is σ = 133111330143222. Its totient is φ = 133111330143220.

The previous prime is 133111330143163. The next prime is 133111330143247. The reversal of 133111330143221 is 122341033111331.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 131331920880196 + 1779409263025 = 11460014^2 + 1333945^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-133111330143221 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (133111330143251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66555665071610 + 66555665071611.

It is an arithmetic number, because the mean of its divisors is an integer number (66555665071611).

Almost surely, 2^{133111330143221} is an apocalyptic number.

It is an amenable number.

133111330143221 is a deficient number, since it is larger than the sum of its proper divisors (1).

133111330143221 is an equidigital number, since it uses as much as digits as its factorization.

133111330143221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3888, while the sum is 29.

Adding to 133111330143221 its reverse (122341033111331), we get a palindrome (255452363254552).

The spelling of 133111330143221 in words is "one hundred thirty-three trillion, one hundred eleven billion, three hundred thirty million, one hundred forty-three thousand, two hundred twenty-one".