1222200011 has 2 divisors, whose sum is σ = 1222200012. Its totient is φ = 1222200010.

The previous prime is 1222199999. The next prime is 1222200029. The reversal of 1222200011 is 1100022221.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1222200011 - 2¹⁸ = 1221937867 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1222199965 and 1222200001.

It is not a weakly prime, because it can be changed into another prime (1222200071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611100005 + 611100006.

It is an arithmetic number, because the mean of its divisors is an integer number (611100006).

Almost surely, 2^1222200011 is an apocalyptic number.

1222200011 is a deficient number, since it is larger than the sum of its proper divisors (1).

1222200011 is an equidigital number, since it uses as much as digits as its factorization.

1222200011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 1222200011 is about 34959.9772740201. The cubic root of 1222200011 is about 1069.1716332996.

Adding to 1222200011 its reverse (1100022221), we get a palindrome (2322222232).

The spelling of 1222200011 in words is "one billion, two hundred twenty-two million, two hundred thousand, eleven".