10022120221 has 2 divisors, whose sum is σ = 10022120222. Its totient is φ = 10022120220.

The previous prime is 10022120203. The next prime is 10022120243. The reversal of 10022120221 is 12202122001.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7941483225 + 2080636996 = 89115^2 + 45614^2 .

It is a cyclic number.

It is not a de Polignac number, because 10022120221 - 2⁷ = 10022120093 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10022120621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5011060110 + 5011060111.

It is an arithmetic number, because the mean of its divisors is an integer number (5011060111).

Almost surely, 2^10022120221 is an apocalyptic number.

It is an amenable number.

10022120221 is a deficient number, since it is larger than the sum of its proper divisors (1).

10022120221 is an equidigital number, since it uses as much as digits as its factorization.

10022120221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 10022120221 its reverse (12202122001), we get a palindrome (22224242222).

The spelling of 10022120221 in words is "ten billion, twenty-two million, one hundred twenty thousand, two hundred twenty-one".