204120220019 has 2 divisors, whose sum is σ = 204120220020. Its totient is φ = 204120220018.

The previous prime is 204120219983. The next prime is 204120220043. The reversal of 204120220019 is 910022021402.

204120220019 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-204120220019 is a prime.

It is a super-2 number, since 2×204120220019² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 204120219976 and 204120220003.

It is not a weakly prime, because it can be changed into another prime (204120220079) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102060110009 + 102060110010.

It is an arithmetic number, because the mean of its divisors is an integer number (102060110010).

Almost surely, 2^204120220019 is an apocalyptic number.

204120220019 is a deficient number, since it is larger than the sum of its proper divisors (1).

204120220019 is an equidigital number, since it uses as much as digits as its factorization.

204120220019 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 23.

The spelling of 204120220019 in words is "two hundred four billion, one hundred twenty million, two hundred twenty thousand, nineteen".