10221220073 has 2 divisors, whose sum is σ = 10221220074. Its totient is φ = 10221220072.

The previous prime is 10221219997. The next prime is 10221220109. The reversal of 10221220073 is 37002212201.

10221220073 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10176169129 + 45050944 = 100877^2 + 6712^2 .

It is a cyclic number.

It is not a de Polignac number, because 10221220073 - 2⁸ = 10221219817 is a prime.

It is not a weakly prime, because it can be changed into another prime (10221220973) 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, 5110610036 + 5110610037.

It is an arithmetic number, because the mean of its divisors is an integer number (5110610037).

Almost surely, 2^10221220073 is an apocalyptic number.

It is an amenable number.

10221220073 is a deficient number, since it is larger than the sum of its proper divisors (1).

10221220073 is an equidigital number, since it uses as much as digits as its factorization.

10221220073 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 336, while the sum is 20.

Adding to 10221220073 its reverse (37002212201), we get a palindrome (47223432274).

The spelling of 10221220073 in words is "ten billion, two hundred twenty-one million, two hundred twenty thousand, seventy-three".