220133120021 has 2 divisors, whose sum is σ = 220133120022. Its totient is φ = 220133120020.

The previous prime is 220133119993. The next prime is 220133120041. The reversal of 220133120021 is 120021331022.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 201843532900 + 18289587121 = 449270^2 + 135239^2 .

It is a cyclic number.

It is not a de Polignac number, because 220133120021 - 2⁶ = 220133119957 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (220133120041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110066560010 + 110066560011.

It is an arithmetic number, because the mean of its divisors is an integer number (110066560011).

Almost surely, 2^220133120021 is an apocalyptic number.

It is an amenable number.

220133120021 is a deficient number, since it is larger than the sum of its proper divisors (1).

220133120021 is an equidigital number, since it uses as much as digits as its factorization.

220133120021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 220133120021 its reverse (120021331022), we get a palindrome (340154451043).

The spelling of 220133120021 in words is "two hundred twenty billion, one hundred thirty-three million, one hundred twenty thousand, twenty-one".