22447446225 has 12 divisors (see below), whose sum is σ = 37113111216. Its totient is φ = 11971971280.

The previous prime is 22447446209. The next prime is 22447446227. The reversal of 22447446225 is 52264474422.

It is a happy number.

It is not a de Polignac number, because 22447446225 - 2⁴ = 22447446209 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22447446227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 149649567 + ... + 149649716.

It is an arithmetic number, because the mean of its divisors is an integer number (3092759268).

Almost surely, 2^22447446225 is an apocalyptic number.

22447446225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22447446225 is a deficient number, since it is larger than the sum of its proper divisors (14665664991).

22447446225 is a wasteful number, since it uses less digits than its factorization.

22447446225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 299299296 (or 299299291 counting only the distinct ones).

The product of its digits is 860160, while the sum is 42.

The spelling of 22447446225 in words is "twenty-two billion, four hundred forty-seven million, four hundred forty-six thousand, two hundred twenty-five".