211020022112201 has 2 divisors, whose sum is σ = 211020022112202. Its totient is φ = 211020022112200.

The previous prime is 211020022112189. The next prime is 211020022112203. The reversal of 211020022112201 is 102211220020112.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 117563622840976 + 93456399271225 = 10842676^2 + 9667285^2 .

It is a cyclic number.

It is not a de Polignac number, because 211020022112201 - 2¹⁰ = 211020022111177 is a prime.

Together with 211020022112203, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 211020022112201.

It is not a weakly prime, because it can be changed into another prime (211020022112203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105510011056100 + 105510011056101.

It is an arithmetic number, because the mean of its divisors is an integer number (105510011056101).

Almost surely, 2^{211020022112201} is an apocalyptic number.

It is an amenable number.

211020022112201 is a deficient number, since it is larger than the sum of its proper divisors (1).

211020022112201 is an equidigital number, since it uses as much as digits as its factorization.

211020022112201 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 17.

Adding to 211020022112201 its reverse (102211220020112), we get a palindrome (313231242132313).

The spelling of 211020022112201 in words is "two hundred eleven trillion, twenty billion, twenty-two million, one hundred twelve thousand, two hundred one".