212021212201213 has 2 divisors, whose sum is σ = 212021212201214. Its totient is φ = 212021212201212.

The previous prime is 212021212201133. The next prime is 212021212201301. The reversal of 212021212201213 is 312102212120212.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 192569963333764 + 19451248867449 = 13876958^2 + 4410357^2 .

It is a cyclic number.

It is not a de Polignac number, because 212021212201213 - 2⁹ = 212021212200701 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212021212201013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106010606100606 + 106010606100607.

It is an arithmetic number, because the mean of its divisors is an integer number (106010606100607).

Almost surely, 2^{212021212201213} is an apocalyptic number.

It is an amenable number.

212021212201213 is a deficient number, since it is larger than the sum of its proper divisors (1).

212021212201213 is an equidigital number, since it uses as much as digits as its factorization.

212021212201213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 384, while the sum is 22.

Adding to 212021212201213 its reverse (312102212120212), we get a palindrome (524123424321425).

The spelling of 212021212201213 in words is "two hundred twelve trillion, twenty-one billion, two hundred twelve million, two hundred one thousand, two hundred thirteen".