20102227 has 2 divisors, whose sum is σ = 20102228. Its totient is φ = 20102226.

The previous prime is 20102219. The next prime is 20102233. The reversal of 20102227 is 72220102.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20102227 - 2³ = 20102219 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20102227.

It is not a weakly prime, because it can be changed into another prime (20102267) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10051113 + 10051114.

It is an arithmetic number, because the mean of its divisors is an integer number (10051114).

Almost surely, 2^20102227 is an apocalyptic number.

20102227 is a deficient number, since it is larger than the sum of its proper divisors (1).

20102227 is an equidigital number, since it uses as much as digits as its factorization.

20102227 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 112, while the sum is 16.

The square root of 20102227 is about 4483.5507134413. The cubic root of 20102227 is about 271.9034538767.

Adding to 20102227 its reverse (72220102), we get a palindrome (92322329).

The spelling of 20102227 in words is "twenty million, one hundred two thousand, two hundred twenty-seven".