204221100130429 has 2 divisors, whose sum is σ = 204221100130430. Its totient is φ = 204221100130428.

The previous prime is 204221100130339. The next prime is 204221100130433. The reversal of 204221100130429 is 924031001122402.

204221100130429 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 can be written as a sum of positive squares in only one way, i.e., 150953216835204 + 53267883295225 = 12286302^2 + 7298485^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-204221100130429 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 204221100130429.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (204221100130829) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102110550065214 + 102110550065215.

It is an arithmetic number, because the mean of its divisors is an integer number (102110550065215).

Almost surely, 2^{204221100130429} is an apocalyptic number.

It is an amenable number.

204221100130429 is a deficient number, since it is larger than the sum of its proper divisors (1).

204221100130429 is an equidigital number, since it uses as much as digits as its factorization.

204221100130429 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6912, while the sum is 31.

The spelling of 204221100130429 in words is "two hundred four trillion, two hundred twenty-one billion, one hundred million, one hundred thirty thousand, four hundred twenty-nine".