20042011212449 has 2 divisors, whose sum is σ = 20042011212450. Its totient is φ = 20042011212448.

The previous prime is 20042011212397. The next prime is 20042011212451. The reversal of 20042011212449 is 94421211024002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12488484549025 + 7553526663424 = 3533905^2 + 2748368^2 .

It is a cyclic number.

It is not a de Polignac number, because 20042011212449 - 2⁸ = 20042011212193 is a prime.

Together with 20042011212451, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (20042011212469) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10021005606224 + 10021005606225.

It is an arithmetic number, because the mean of its divisors is an integer number (10021005606225).

Almost surely, 2^{20042011212449} is an apocalyptic number.

It is an amenable number.

20042011212449 is a deficient number, since it is larger than the sum of its proper divisors (1).

20042011212449 is an equidigital number, since it uses as much as digits as its factorization.

20042011212449 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9216, while the sum is 32.

The spelling of 20042011212449 in words is "twenty trillion, forty-two billion, eleven million, two hundred twelve thousand, four hundred forty-nine".