22010012065 has 8 divisors (see below), whose sum is σ = 26412834600. Its totient is φ = 17607462912.

The previous prime is 22010012033. The next prime is 22010012069. The reversal of 22010012065 is 56021001022.

It can be written as a sum of positive squares in 4 ways, for example, as 1907592976 + 20102419089 = 43676^2 + 141783^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 22010012065 - 2⁵ = 22010012033 is a prime.

It is a super-2 number, since 2×22010012065² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (22010012069) 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 in 7 ways as a sum of consecutive naturals, for example, 217377 + ... + 302113.

It is an arithmetic number, because the mean of its divisors is an integer number (3301604325).

Almost surely, 2^22010012065 is an apocalyptic number.

It is an amenable number.

22010012065 is a deficient number, since it is larger than the sum of its proper divisors (4402822535).

22010012065 is an equidigital number, since it uses as much as digits as its factorization.

22010012065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136691.

The product of its (nonzero) digits is 240, while the sum is 19.

Adding to 22010012065 its reverse (56021001022), we get a palindrome (78031013087).

The spelling of 22010012065 in words is "twenty-two billion, ten million, twelve thousand, sixty-five".