20000022109 has 2 divisors, whose sum is σ = 20000022110. Its totient is φ = 20000022108.

The previous prime is 20000022083. The next prime is 20000022127. The reversal of 20000022109 is 90122000002.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12153960025 + 7846062084 = 110245^2 + 88578^2 .

It is a cyclic number.

It is not a de Polignac number, because 20000022109 - 2⁷ = 20000021981 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20000022092 and 20000022101.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20000022149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10000011054 + 10000011055.

It is an arithmetic number, because the mean of its divisors is an integer number (10000011055).

Almost surely, 2^20000022109 is an apocalyptic number.

It is an amenable number.

20000022109 is a deficient number, since it is larger than the sum of its proper divisors (1).

20000022109 is an equidigital number, since it uses as much as digits as its factorization.

20000022109 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 16.

The spelling of 20000022109 in words is "twenty billion, twenty-two thousand, one hundred nine".