20220101009 has 2 divisors, whose sum is σ = 20220101010. Its totient is φ = 20220101008.

The previous prime is 20220100997. The next prime is 20220101023. The reversal of 20220101009 is 90010102202.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11341185025 + 8878915984 = 106495^2 + 94228^2 .

It is a cyclic number.

It is not a de Polignac number, because 20220101009 - 2²⁴ = 20203323793 is a prime.

It is not a weakly prime, because it can be changed into another prime (20220101039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10110050504 + 10110050505.

It is an arithmetic number, because the mean of its divisors is an integer number (10110050505).

Almost surely, 2^20220101009 is an apocalyptic number.

It is an amenable number.

20220101009 is a deficient number, since it is larger than the sum of its proper divisors (1).

20220101009 is an equidigital number, since it uses as much as digits as its factorization.

20220101009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 17.

The spelling of 20220101009 in words is "twenty billion, two hundred twenty million, one hundred one thousand, nine".