2011222229 has 2 divisors, whose sum is σ = 2011222230. Its totient is φ = 2011222228.

The previous prime is 2011222163. The next prime is 2011222237. The reversal of 2011222229 is 9222221102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1806675025 + 204547204 = 42505^2 + 14302^2 .

It is a cyclic number.

It is not a de Polignac number, because 2011222229 - 2⁸ = 2011221973 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2011222289) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1005611114 + 1005611115.

It is an arithmetic number, because the mean of its divisors is an integer number (1005611115).

Almost surely, 2^2011222229 is an apocalyptic number.

It is an amenable number.

2011222229 is a deficient number, since it is larger than the sum of its proper divisors (1).

2011222229 is an equidigital number, since it uses as much as digits as its factorization.

2011222229 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 2011222229 is about 44846.6523722786. The cubic root of 2011222229 is about 1262.2731764387.

The spelling of 2011222229 in words is "two billion, eleven million, two hundred twenty-two thousand, two hundred twenty-nine".