211210020022201 has 2 divisors, whose sum is σ = 211210020022202. Its totient is φ = 211210020022200.

The previous prime is 211210020022171. The next prime is 211210020022241. The reversal of 211210020022201 is 102220020012112.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 166891388636025 + 44318631386176 = 12918645^2 + 6657224^2 .

It is a cyclic number.

It is not a de Polignac number, because 211210020022201 - 2³⁷ = 211072581068729 is a prime.

It is not a weakly prime, because it can be changed into another prime (211210020022241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105605010011100 + 105605010011101.

It is an arithmetic number, because the mean of its divisors is an integer number (105605010011101).

Almost surely, 2^{211210020022201} is an apocalyptic number.

It is an amenable number.

211210020022201 is a deficient number, since it is larger than the sum of its proper divisors (1).

211210020022201 is an equidigital number, since it uses as much as digits as its factorization.

211210020022201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 211210020022201 its reverse (102220020012112), we get a palindrome (313430040034313).

The spelling of 211210020022201 in words is "two hundred eleven trillion, two hundred ten billion, twenty million, twenty-two thousand, two hundred one".