210333144041021 has 2 divisors, whose sum is σ = 210333144041022. Its totient is φ = 210333144041020.

The previous prime is 210333144041011. The next prime is 210333144041029. The reversal of 210333144041021 is 120140441333012.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 209825045944921 + 508098096100 = 14485339^2 + 712810^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-210333144041021 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (210333144041029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105166572020510 + 105166572020511.

It is an arithmetic number, because the mean of its divisors is an integer number (105166572020511).

Almost surely, 2^{210333144041021} is an apocalyptic number.

It is an amenable number.

210333144041021 is a deficient number, since it is larger than the sum of its proper divisors (1).

210333144041021 is an equidigital number, since it uses as much as digits as its factorization.

210333144041021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6912, while the sum is 29.

Adding to 210333144041021 its reverse (120140441333012), we get a palindrome (330473585374033).

The spelling of 210333144041021 in words is "two hundred ten trillion, three hundred thirty-three billion, one hundred forty-four million, forty-one thousand, twenty-one".