22222022122009 has 2 divisors, whose sum is σ = 22222022122010. Its totient is φ = 22222022122008.

The previous prime is 22222022122007. The next prime is 22222022122049. The reversal of 22222022122009 is 90022122022222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15176166835600 + 7045855286409 = 3895660^2 + 2654403^2 .

It is a cyclic number.

It is not a de Polignac number, because 22222022122009 - 2¹ = 22222022122007 is a prime.

Together with 22222022122007, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (22222022122007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11111011061004 + 11111011061005.

It is an arithmetic number, because the mean of its divisors is an integer number (11111011061005).

Almost surely, 2^{22222022122009} is an apocalyptic number.

It is an amenable number.

22222022122009 is a deficient number, since it is larger than the sum of its proper divisors (1).

22222022122009 is an equidigital number, since it uses as much as digits as its factorization.

22222022122009 is an evil number, because the sum of its binary digits is even.

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

The spelling of 22222022122009 in words is "twenty-two trillion, two hundred twenty-two billion, twenty-two million, one hundred twenty-two thousand, nine".