20041221227 has 2 divisors, whose sum is σ = 20041221228. Its totient is φ = 20041221226.

The previous prime is 20041221209. The next prime is 20041221247. The reversal of 20041221227 is 72212214002.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20041221227 - 2⁸ = 20041220971 is a prime.

It is not a weakly prime, because it can be changed into another prime (20041221247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10020610613 + 10020610614.

It is an arithmetic number, because the mean of its divisors is an integer number (10020610614).

Almost surely, 2^20041221227 is an apocalyptic number.

20041221227 is a deficient number, since it is larger than the sum of its proper divisors (1).

20041221227 is an equidigital number, since it uses as much as digits as its factorization.

20041221227 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 896, while the sum is 23.

Adding to 20041221227 its reverse (72212214002), we get a palindrome (92253435229).

The spelling of 20041221227 in words is "twenty billion, forty-one million, two hundred twenty-one thousand, two hundred twenty-seven".