211222200001 has 2 divisors, whose sum is σ = 211222200002. Its totient is φ = 211222200000.

The previous prime is 211222199963. The next prime is 211222200029. The reversal of 211222200001 is 100002222112.

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., 209965568400 + 1256631601 = 458220^2 + 35449^2 .

It is a cyclic number.

It is not a de Polignac number, because 211222200001 - 2¹⁷ = 211222068929 is a prime.

It is a super-2 number, since 2×211222200001² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (211222200401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105611100000 + 105611100001.

It is an arithmetic number, because the mean of its divisors is an integer number (105611100001).

Almost surely, 2^211222200001 is an apocalyptic number.

It is an amenable number.

211222200001 is a deficient number, since it is larger than the sum of its proper divisors (1).

211222200001 is an equidigital number, since it uses as much as digits as its factorization.

211222200001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 211222200001 its reverse (100002222112), we get a palindrome (311224422113).

The spelling of 211222200001 in words is "two hundred eleven billion, two hundred twenty-two million, two hundred thousand, one".