10225043221 has 2 divisors, whose sum is σ = 10225043222. Its totient is φ = 10225043220.

The previous prime is 10225043219. The next prime is 10225043243. The reversal of 10225043221 is 12234052201.

It is a happy number.

10225043221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an a-pointer prime, because the next prime (10225043243) can be obtained adding 10225043221 to its sum of digits (22).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10166688900 + 58354321 = 100830^2 + 7639^2 .

It is a cyclic number.

It is not a de Polignac number, because 10225043221 - 2¹ = 10225043219 is a prime.

Together with 10225043219, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 10225043192 and 10225043201.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10225043291) 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, 5112521610 + 5112521611.

It is an arithmetic number, because the mean of its divisors is an integer number (5112521611).

Almost surely, 2^10225043221 is an apocalyptic number.

It is an amenable number.

10225043221 is a deficient number, since it is larger than the sum of its proper divisors (1).

10225043221 is an equidigital number, since it uses as much as digits as its factorization.

10225043221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 960, while the sum is 22.

Adding to 10225043221 its reverse (12234052201), we get a palindrome (22459095422).

The spelling of 10225043221 in words is "ten billion, two hundred twenty-five million, forty-three thousand, two hundred twenty-one".