227960221 has 2 divisors, whose sum is σ = 227960222. Its totient is φ = 227960220.

The previous prime is 227960171. The next prime is 227960237. The reversal of 227960221 is 122069722.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 211848025 + 16112196 = 14555^2 + 4014^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-227960221 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (227960251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 113980110 + 113980111.

It is an arithmetic number, because the mean of its divisors is an integer number (113980111).

Almost surely, 2^227960221 is an apocalyptic number.

It is an amenable number.

227960221 is a deficient number, since it is larger than the sum of its proper divisors (1).

227960221 is an equidigital number, since it uses as much as digits as its factorization.

227960221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 227960221 is about 15098.3515987673. The cubic root of 227960221 is about 610.8759439305.

It can be divided in two parts, 2279 and 60221, that added together give a square (62500 = 250²).

The spelling of 227960221 in words is "two hundred twenty-seven million, nine hundred sixty thousand, two hundred twenty-one".