20622230352225 has 18 divisors (see below), whose sum is σ = 36936705920166. Its totient is φ = 10998522854400.

The previous prime is 20622230352221. The next prime is 20622230352307. The reversal of 20622230352225 is 52225303222602.

20622230352225 is a `hidden beast` number, since 2 + 0 + 62 + 2 + 23 + 0 + 352 + 225 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 4074289769169 + 16547940583056 = 2018487^2 + 4067916^2 .

It is not a de Polignac number, because 20622230352225 - 2² = 20622230352221 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20622230352225.

It is not an unprimeable number, because it can be changed into a prime (20622230352221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 45827178336 + ... + 45827178785.

It is an arithmetic number, because the mean of its divisors is an integer number (2052039217787).

Almost surely, 2^{20622230352225} is an apocalyptic number.

20622230352225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20622230352225 is a deficient number, since it is larger than the sum of its proper divisors (16314475567941).

20622230352225 is a wasteful number, since it uses less digits than its factorization.

20622230352225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91654357137 (or 91654357129 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 36.

Adding to 20622230352225 its reverse (52225303222602), we get a palindrome (72847533574827).

The spelling of 20622230352225 in words is "twenty trillion, six hundred twenty-two billion, two hundred thirty million, three hundred fifty-two thousand, two hundred twenty-five".