210144222433021 has 2 divisors, whose sum is σ = 210144222433022. Its totient is φ = 210144222433020.

The previous prime is 210144222433009. The next prime is 210144222433043. The reversal of 210144222433021 is 120334222441012.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 207118553524996 + 3025668908025 = 14391614^2 + 1739445^2 .

It is a cyclic number.

It is not a de Polignac number, because 210144222433021 - 2¹⁵ = 210144222400253 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (210144222433121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105072111216510 + 105072111216511.

It is an arithmetic number, because the mean of its divisors is an integer number (105072111216511).

Almost surely, 2^{210144222433021} is an apocalyptic number.

It is an amenable number.

210144222433021 is a deficient number, since it is larger than the sum of its proper divisors (1).

210144222433021 is an equidigital number, since it uses as much as digits as its factorization.

210144222433021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18432, while the sum is 31.

Adding to 210144222433021 its reverse (120334222441012), we get a palindrome (330478444874033).

The spelling of 210144222433021 in words is "two hundred ten trillion, one hundred forty-four billion, two hundred twenty-two million, four hundred thirty-three thousand, twenty-one".