227221085197 has 2 divisors, whose sum is σ = 227221085198. Its totient is φ = 227221085196.

The previous prime is 227221085183. The next prime is 227221085209. The reversal of 227221085197 is 791580122722.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 165137389641 + 62083695556 = 406371^2 + 249166^2 .

It is a cyclic number.

It is not a de Polignac number, because 227221085197 - 2¹⁹ = 227220560909 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (227221085107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 113610542598 + 113610542599.

It is an arithmetic number, because the mean of its divisors is an integer number (113610542599).

Almost surely, 2^227221085197 is an apocalyptic number.

It is an amenable number.

227221085197 is a deficient number, since it is larger than the sum of its proper divisors (1).

227221085197 is an equidigital number, since it uses as much as digits as its factorization.

227221085197 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 282240, while the sum is 46.

The spelling of 227221085197 in words is "two hundred twenty-seven billion, two hundred twenty-one million, eighty-five thousand, one hundred ninety-seven".