205220412227 has 2 divisors, whose sum is σ = 205220412228. Its totient is φ = 205220412226.

The previous prime is 205220412193. The next prime is 205220412239. The reversal of 205220412227 is 722214022502.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 205220412227 - 2²⁶ = 205153303363 is a prime.

It is a super-2 number, since 2×205220412227² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 205220412227.

It is not a weakly prime, because it can be changed into another prime (205220442227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102610206113 + 102610206114.

It is an arithmetic number, because the mean of its divisors is an integer number (102610206114).

Almost surely, 2^205220412227 is an apocalyptic number.

205220412227 is a deficient number, since it is larger than the sum of its proper divisors (1).

205220412227 is an equidigital number, since it uses as much as digits as its factorization.

205220412227 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8960, while the sum is 29.

Adding to 205220412227 its reverse (722214022502), we get a palindrome (927434434729).

The spelling of 205220412227 in words is "two hundred five billion, two hundred twenty million, four hundred twelve thousand, two hundred twenty-seven".