205222410011 has 4 divisors (see below), whose sum is σ = 205842417624. Its totient is φ = 204602402400.

The previous prime is 205222409999. The next prime is 205222410013. The reversal of 205222410011 is 110014222502.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 110014222502 = 2 ⋅55007111251.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-205222410011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (205222410013) 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, 310003310 + ... + 310003971.

It is an arithmetic number, because the mean of its divisors is an integer number (51460604406).

Almost surely, 2^205222410011 is an apocalyptic number.

205222410011 is a deficient number, since it is larger than the sum of its proper divisors (620007613).

205222410011 is an equidigital number, since it uses as much as digits as its factorization.

205222410011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 620007612.

The product of its (nonzero) digits is 320, while the sum is 20.

Adding to 205222410011 its reverse (110014222502), we get a palindrome (315236632513).

The spelling of 205222410011 in words is "two hundred five billion, two hundred twenty-two million, four hundred ten thousand, eleven".