9010222100221 has 2 divisors, whose sum is σ = 9010222100222. Its totient is φ = 9010222100220.

The previous prime is 9010222100197. The next prime is 9010222100273. The reversal of 9010222100221 is 1220012220109.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7664647620100 + 1345574480121 = 2768510^2 + 1159989^2 .

It is an emirp because it is prime and its reverse (1220012220109) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9010222100221 - 2¹¹ = 9010222098173 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 9010222100192 and 9010222100201.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9010222100021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4505111050110 + 4505111050111.

It is an arithmetic number, because the mean of its divisors is an integer number (4505111050111).

Almost surely, 2^{9010222100221} is an apocalyptic number.

It is an amenable number.

9010222100221 is a deficient number, since it is larger than the sum of its proper divisors (1).

9010222100221 is an equidigital number, since it uses as much as digits as its factorization.

9010222100221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 22.

The spelling of 9010222100221 in words is "nine trillion, ten billion, two hundred twenty-two million, one hundred thousand, two hundred twenty-one".