212221100110213 has 2 divisors, whose sum is σ = 212221100110214. Its totient is φ = 212221100110212.

The previous prime is 212221100110157. The next prime is 212221100110223. The reversal of 212221100110213 is 312011001122212.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 206900664257764 + 5320435852449 = 14384042^2 + 2306607^2 .

It is a cyclic number.

It is not a de Polignac number, because 212221100110213 - 2⁹ = 212221100109701 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212221100110223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106110550055106 + 106110550055107.

It is an arithmetic number, because the mean of its divisors is an integer number (106110550055107).

Almost surely, 2^{212221100110213} is an apocalyptic number.

It is an amenable number.

212221100110213 is a deficient number, since it is larger than the sum of its proper divisors (1).

212221100110213 is an equidigital number, since it uses as much as digits as its factorization.

212221100110213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96, while the sum is 19.

Adding to 212221100110213 its reverse (312011001122212), we get a palindrome (524232101232425).

The spelling of 212221100110213 in words is "two hundred twelve trillion, two hundred twenty-one billion, one hundred million, one hundred ten thousand, two hundred thirteen".