22002001022009 has 2 divisors, whose sum is σ = 22002001022010. Its totient is φ = 22002001022008.

The previous prime is 22002001021969. The next prime is 22002001022051. The reversal of 22002001022009 is 90022010020022.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20614324090000 + 1387676932009 = 4540300^2 + 1177997^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22002001022009 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (22002001022809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11001000511004 + 11001000511005.

It is an arithmetic number, because the mean of its divisors is an integer number (11001000511005).

Almost surely, 2^{22002001022009} is an apocalyptic number.

It is an amenable number.

22002001022009 is a deficient number, since it is larger than the sum of its proper divisors (1).

22002001022009 is an equidigital number, since it uses as much as digits as its factorization.

22002001022009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 20.

The spelling of 22002001022009 in words is "twenty-two trillion, two billion, one million, twenty-two thousand, nine".