212021012201017 has 2 divisors, whose sum is σ = 212021012201018. Its totient is φ = 212021012201016.

The previous prime is 212021012200993. The next prime is 212021012201027. The reversal of 212021012201017 is 710102210120212.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 181775676021241 + 30245336179776 = 13482421^2 + 5499576^2 .

It is a cyclic number.

It is not a de Polignac number, because 212021012201017 - 2¹⁹ = 212021011676729 is a prime.

It is a super-2 number, since 2×212021012201017² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (212021012201027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106010506100508 + 106010506100509.

It is an arithmetic number, because the mean of its divisors is an integer number (106010506100509).

Almost surely, 2^{212021012201017} is an apocalyptic number.

It is an amenable number.

212021012201017 is a deficient number, since it is larger than the sum of its proper divisors (1).

212021012201017 is an equidigital number, since it uses as much as digits as its factorization.

212021012201017 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 224, while the sum is 22.

Adding to 212021012201017 its reverse (710102210120212), we get a palindrome (922123222321229).

The spelling of 212021012201017 in words is "two hundred twelve trillion, twenty-one billion, twelve million, two hundred one thousand, seventeen".