22222718082225 has 120 divisors (see below), whose sum is σ = 42593764059000. Its totient is φ = 11440693877760.

The previous prime is 22222718082199. The next prime is 22222718082281. The reversal of 22222718082225 is 52228081722222.

22222718082225 is a `hidden beast` number, since 2 + 2 + 2 + 2 + 271 + 80 + 82 + 225 = 666.

It can be written as a sum of positive squares in 12 ways, for example, as 17454539246769 + 4768178835456 = 4177863^2 + 2183616^2 .

It is not a de Polignac number, because 22222718082225 - 2⁵ = 22222718082193 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 258875611 + ... + 258961439.

It is an arithmetic number, because the mean of its divisors is an integer number (354948033825).

Almost surely, 2^{22222718082225} is an apocalyptic number.

22222718082225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22222718082225 is a deficient number, since it is larger than the sum of its proper divisors (20371045976775).

22222718082225 is a wasteful number, since it uses less digits than its factorization.

22222718082225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90289 (or 90275 counting only the distinct ones).

The product of its (nonzero) digits is 573440, while the sum is 45.

The spelling of 22222718082225 in words is "twenty-two trillion, two hundred twenty-two billion, seven hundred eighteen million, eighty-two thousand, two hundred twenty-five".