2222222122009 has 2 divisors, whose sum is σ = 2222222122010. Its totient is φ = 2222222122008.

The previous prime is 2222222121991. The next prime is 2222222122039. The reversal of 2222222122009 is 9002212222222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1668346806025 + 553875315984 = 1291645^2 + 744228^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2222222122009 is a prime.

It is not a weakly prime, because it can be changed into another prime (2222222122039) 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, 1111111061004 + 1111111061005.

It is an arithmetic number, because the mean of its divisors is an integer number (1111111061005).

Almost surely, 2^{2222222122009} is an apocalyptic number.

It is an amenable number.

2222222122009 is a deficient number, since it is larger than the sum of its proper divisors (1).

2222222122009 is an equidigital number, since it uses as much as digits as its factorization.

2222222122009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4608, while the sum is 28.

The spelling of 2222222122009 in words is "two trillion, two hundred twenty-two billion, two hundred twenty-two million, one hundred twenty-two thousand, nine".