20122042210009 has 2 divisors, whose sum is σ = 20122042210010. Its totient is φ = 20122042210008.

The previous prime is 20122042209991. The next prime is 20122042210033. The reversal of 20122042210009 is 90001224022102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12624697265625 + 7497344944384 = 3553125^2 + 2738128^2 .

It is a cyclic number.

It is not a de Polignac number, because 20122042210009 - 2¹⁹ = 20122041685721 is a prime.

It is not a weakly prime, because it can be changed into another prime (20122042210409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10061021105004 + 10061021105005.

It is an arithmetic number, because the mean of its divisors is an integer number (10061021105005).

Almost surely, 2^{20122042210009} is an apocalyptic number.

It is an amenable number.

20122042210009 is a deficient number, since it is larger than the sum of its proper divisors (1).

20122042210009 is an equidigital number, since it uses as much as digits as its factorization.

20122042210009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1152, while the sum is 25.

The spelling of 20122042210009 in words is "twenty trillion, one hundred twenty-two billion, forty-two million, two hundred ten thousand, nine".