21220200023227 has 2 divisors, whose sum is σ = 21220200023228. Its totient is φ = 21220200023226.

The previous prime is 21220200023203. The next prime is 21220200023237. The reversal of 21220200023227 is 72232000202212.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 21220200023227 - 2¹⁵ = 21220199990459 is a prime.

It is not a weakly prime, because it can be changed into another prime (21220200023237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10610100011613 + 10610100011614.

It is an arithmetic number, because the mean of its divisors is an integer number (10610100011614).

Almost surely, 2^{21220200023227} is an apocalyptic number.

21220200023227 is a deficient number, since it is larger than the sum of its proper divisors (1).

21220200023227 is an equidigital number, since it uses as much as digits as its factorization.

21220200023227 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2688, while the sum is 25.

Adding to 21220200023227 its reverse (72232000202212), we get a palindrome (93452200225439).

The spelling of 21220200023227 in words is "twenty-one trillion, two hundred twenty billion, two hundred million, twenty-three thousand, two hundred twenty-seven".