211222222010201 has 2 divisors, whose sum is σ = 211222222010202. Its totient is φ = 211222222010200.

The previous prime is 211222222010183. The next prime is 211222222010209. The reversal of 211222222010201 is 102010222222112.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 193605935635225 + 17616286374976 = 13914235^2 + 4197176^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-211222222010201 is a prime.

It is a super-2 number, since 2×211222222010201² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (211222222010209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105611111005100 + 105611111005101.

It is an arithmetic number, because the mean of its divisors is an integer number (105611111005101).

Almost surely, 2^{211222222010201} is an apocalyptic number.

It is an amenable number.

211222222010201 is a deficient number, since it is larger than the sum of its proper divisors (1).

211222222010201 is an equidigital number, since it uses as much as digits as its factorization.

211222222010201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 211222222010201 its reverse (102010222222112), we get a palindrome (313232444232313).

The spelling of 211222222010201 in words is "two hundred eleven trillion, two hundred twenty-two billion, two hundred twenty-two million, ten thousand, two hundred one".