21022010227 has 2 divisors, whose sum is σ = 21022010228. Its totient is φ = 21022010226.

The previous prime is 21022010213. The next prime is 21022010231. The reversal of 21022010227 is 72201022012.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 21022010227 - 2⁷ = 21022010099 is a prime.

It is not a weakly prime, because it can be changed into another prime (21022010287) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10511005113 + 10511005114.

It is an arithmetic number, because the mean of its divisors is an integer number (10511005114).

Almost surely, 2^21022010227 is an apocalyptic number.

21022010227 is a deficient number, since it is larger than the sum of its proper divisors (1).

21022010227 is an equidigital number, since it uses as much as digits as its factorization.

21022010227 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 224, while the sum is 19.

Adding to 21022010227 its reverse (72201022012), we get a palindrome (93223032239).

The spelling of 21022010227 in words is "twenty-one billion, twenty-two million, ten thousand, two hundred twenty-seven".