204130222211 has 4 divisors (see below), whose sum is σ = 204398462424. Its totient is φ = 203861982000.

The previous prime is 204130222169. The next prime is 204130222217. The reversal of 204130222211 is 112222031402.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-204130222211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (204130222217) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 134118965 + ... + 134120486.

It is an arithmetic number, because the mean of its divisors is an integer number (51099615606).

Almost surely, 2^204130222211 is an apocalyptic number.

204130222211 is a deficient number, since it is larger than the sum of its proper divisors (268240213).

204130222211 is an equidigital number, since it uses as much as digits as its factorization.

204130222211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 268240212.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 204130222211 its reverse (112222031402), we get a palindrome (316352253613).

The spelling of 204130222211 in words is "two hundred four billion, one hundred thirty million, two hundred twenty-two thousand, two hundred eleven".