2222220211 has 2 divisors, whose sum is σ = 2222220212. Its totient is φ = 2222220210.

The previous prime is 2222220181. The next prime is 2222220223. The reversal of 2222220211 is 1120222222.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2222220211 - 2¹³ = 2222212019 is a prime.

It is not a weakly prime, because it can be changed into another prime (2222220241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1111110105 + 1111110106.

It is an arithmetic number, because the mean of its divisors is an integer number (1111110106).

Almost surely, 2^2222220211 is an apocalyptic number.

2222220211 is a deficient number, since it is larger than the sum of its proper divisors (1).

2222220211 is an equidigital number, since it uses as much as digits as its factorization.

2222220211 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 2222220211 is about 47140.4307468653. The cubic root of 2222220211 is about 1304.9554867061.

Adding to 2222220211 its reverse (1120222222), we get a palindrome (3342442433).

The spelling of 2222220211 in words is "two billion, two hundred twenty-two million, two hundred twenty thousand, two hundred eleven".