10522220065 has 12 divisors (see below), whose sum is σ = 14688160596. Its totient is φ = 7215236448.

The previous prime is 10522220053. The next prime is 10522220069. The reversal of 10522220065 is 56002222501.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 3954900544 + 6567319521 = 62888^2 + 81039^2 .

It is not a de Polignac number, because 10522220065 - 2⁷ = 10522219937 is a prime.

It is a super-2 number, since 2×10522220065² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10522220069) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21473674 + ... + 21474163.

It is an arithmetic number, because the mean of its divisors is an integer number (1224013383).

Almost surely, 2^10522220065 is an apocalyptic number.

It is an amenable number.

10522220065 is a deficient number, since it is larger than the sum of its proper divisors (4165940531).

10522220065 is an equidigital number, since it uses as much as digits as its factorization.

10522220065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42947856 (or 42947849 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

Adding to 10522220065 its reverse (56002222501), we get a palindrome (66524442566).

The spelling of 10522220065 in words is "ten billion, five hundred twenty-two million, two hundred twenty thousand, sixty-five".