221210070353 has 2 divisors, whose sum is σ = 221210070354. Its totient is φ = 221210070352.

The previous prime is 221210070331. The next prime is 221210070379. The reversal of 221210070353 is 353070012122.

It is an a-pointer prime, because the next prime (221210070379) can be obtained adding 221210070353 to its sum of digits (26).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 181758974224 + 39451096129 = 426332^2 + 198623^2 .

It is a cyclic number.

It is not a de Polignac number, because 221210070353 - 2³⁴ = 204030201169 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (221210070953) 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, 110605035176 + 110605035177.

It is an arithmetic number, because the mean of its divisors is an integer number (110605035177).

Almost surely, 2^221210070353 is an apocalyptic number.

It is an amenable number.

221210070353 is a deficient number, since it is larger than the sum of its proper divisors (1).

221210070353 is an equidigital number, since it uses as much as digits as its factorization.

221210070353 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2520, while the sum is 26.

Adding to 221210070353 its reverse (353070012122), we get a palindrome (574280082475).

The spelling of 221210070353 in words is "two hundred twenty-one billion, two hundred ten million, seventy thousand, three hundred fifty-three".