212200221800201 has 2 divisors, whose sum is σ = 212200221800202. Its totient is φ = 212200221800200.

The previous prime is 212200221800159. The next prime is 212200221800221. The reversal of 212200221800201 is 102008122002212.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 210731820726025 + 1468401074176 = 14516605^2 + 1211776^2 .

It is a cyclic number.

It is not a de Polignac number, because 212200221800201 - 2²² = 212200217605897 is a prime.

It is not a weakly prime, because it can be changed into another prime (212200221800221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106100110900100 + 106100110900101.

It is an arithmetic number, because the mean of its divisors is an integer number (106100110900101).

Almost surely, 2^{212200221800201} is an apocalyptic number.

It is an amenable number.

212200221800201 is a deficient number, since it is larger than the sum of its proper divisors (1).

212200221800201 is an equidigital number, since it uses as much as digits as its factorization.

212200221800201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 512, while the sum is 23.

Adding to 212200221800201 its reverse (102008122002212), we get a palindrome (314208343802413).

The spelling of 212200221800201 in words is "two hundred twelve trillion, two hundred billion, two hundred twenty-one million, eight hundred thousand, two hundred one".