210221122211053 has 2 divisors, whose sum is σ = 210221122211054. Its totient is φ = 210221122211052.

The previous prime is 210221122211027. The next prime is 210221122211081. The reversal of 210221122211053 is 350112221122012.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 180142621445284 + 30078500765769 = 13421722^2 + 5484387^2 .

It is a cyclic number.

It is not a de Polignac number, because 210221122211053 - 2²⁹ = 210220585340141 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (210221122211153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105110561105526 + 105110561105527.

It is an arithmetic number, because the mean of its divisors is an integer number (105110561105527).

Almost surely, 2^{210221122211053} is an apocalyptic number.

It is an amenable number.

210221122211053 is a deficient number, since it is larger than the sum of its proper divisors (1).

210221122211053 is an equidigital number, since it uses as much as digits as its factorization.

210221122211053 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 960, while the sum is 25.

Adding to 210221122211053 its reverse (350112221122012), we get a palindrome (560333343333065).

The spelling of 210221122211053 in words is "two hundred ten trillion, two hundred twenty-one billion, one hundred twenty-two million, two hundred eleven thousand, fifty-three".