20220002009 has 2 divisors, whose sum is σ = 20220002010. Its totient is φ = 20220002008.

The previous prime is 20220002003. The next prime is 20220002059. The reversal of 20220002009 is 90020002202.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10348585984 + 9871416025 = 101728^2 + 99355^2 .

It is a cyclic number.

It is not a de Polignac number, because 20220002009 - 2²⁴ = 20203224793 is a prime.

It is not a weakly prime, because it can be changed into another prime (20220002003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10110001004 + 10110001005.

It is an arithmetic number, because the mean of its divisors is an integer number (10110001005).

Almost surely, 2^20220002009 is an apocalyptic number.

It is an amenable number.

20220002009 is a deficient number, since it is larger than the sum of its proper divisors (1).

20220002009 is an equidigital number, since it uses as much as digits as its factorization.

20220002009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 17.

The spelling of 20220002009 in words is "twenty billion, two hundred twenty million, two thousand, nine".