204220404022469 has 2 divisors, whose sum is σ = 204220404022470. Its totient is φ = 204220404022468.

The previous prime is 204220404022391. The next prime is 204220404022489. The reversal of 204220404022469 is 964220404022402.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 109644039921025 + 94576364101444 = 10471105^2 + 9725038^2 .

It is a cyclic number.

It is not a de Polignac number, because 204220404022469 - 2¹² = 204220404018373 is a prime.

It is a super-2 number, since 2×204220404022469² (a number of 29 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (204220404022489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102110202011234 + 102110202011235.

It is an arithmetic number, because the mean of its divisors is an integer number (102110202011235).

Almost surely, 2^{204220404022469} is an apocalyptic number.

It is an amenable number.

204220404022469 is a deficient number, since it is larger than the sum of its proper divisors (1).

204220404022469 is an equidigital number, since it uses as much as digits as its factorization.

204220404022469 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 442368, while the sum is 41.

The spelling of 204220404022469 in words is "two hundred four trillion, two hundred twenty billion, four hundred four million, twenty-two thousand, four hundred sixty-nine".