20226109 has 2 divisors, whose sum is σ = 20226110. Its totient is φ = 20226108.

The previous prime is 20226091. The next prime is 20226113. The reversal of 20226109 is 90162202.

It is a happy number.

Together with previous prime (20226091) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19829209 + 396900 = 4453^2 + 630^2 .

It is a cyclic number.

It is not a de Polignac number, because 20226109 - 2⁵ = 20226077 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20226109.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20226119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10113054 + 10113055.

It is an arithmetic number, because the mean of its divisors is an integer number (10113055).

Almost surely, 2^20226109 is an apocalyptic number.

It is an amenable number.

20226109 is a deficient number, since it is larger than the sum of its proper divisors (1).

20226109 is an equidigital number, since it uses as much as digits as its factorization.

20226109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 20226109 is about 4497.3446610194. The cubic root of 20226109 is about 272.4608545739.

The spelling of 20226109 in words is "twenty million, two hundred twenty-six thousand, one hundred nine".