133243410422021 has 2 divisors, whose sum is σ = 133243410422022. Its totient is φ = 133243410422020.

The previous prime is 133243410421997. The next prime is 133243410422183. The reversal of 133243410422021 is 120224014342331.

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., 133224435359521 + 18975062500 = 11542289^2 + 137750^2 .

It is a cyclic number.

It is not a de Polignac number, because 133243410422021 - 2¹⁸ = 133243410159877 is a prime.

It is a super-2 number, since 2×133243410422021² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (133243410427021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66621705211010 + 66621705211011.

It is an arithmetic number, because the mean of its divisors is an integer number (66621705211011).

Almost surely, 2^{133243410422021} is an apocalyptic number.

It is an amenable number.

133243410422021 is a deficient number, since it is larger than the sum of its proper divisors (1).

133243410422021 is an equidigital number, since it uses as much as digits as its factorization.

133243410422021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27648, while the sum is 32.

Adding to 133243410422021 its reverse (120224014342331), we get a palindrome (253467424764352).

The spelling of 133243410422021 in words is "one hundred thirty-three trillion, two hundred forty-three billion, four hundred ten million, four hundred twenty-two thousand, twenty-one".