211122022020109 has 2 divisors, whose sum is σ = 211122022020110. Its totient is φ = 211122022020108.

The previous prime is 211122022020103. The next prime is 211122022020121. The reversal of 211122022020109 is 901020220221112.

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., 209571802794025 + 1550219226084 = 14476595^2 + 1245078^2 .

It is a cyclic number.

It is not a de Polignac number, because 211122022020109 - 2¹⁵ = 211122021987341 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (211122022020103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105561011010054 + 105561011010055.

It is an arithmetic number, because the mean of its divisors is an integer number (105561011010055).

Almost surely, 2^{211122022020109} is an apocalyptic number.

It is an amenable number.

211122022020109 is a deficient number, since it is larger than the sum of its proper divisors (1).

211122022020109 is an equidigital number, since it uses as much as digits as its factorization.

211122022020109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 25.

The spelling of 211122022020109 in words is "two hundred eleven trillion, one hundred twenty-two billion, twenty-two million, twenty thousand, one hundred nine".