22226226625 has 8 divisors (see below), whose sum is σ = 27738330984. Its totient is φ = 17780981200.

The previous prime is 22226226601. The next prime is 22226226641. The reversal of 22226226625 is 52662262222.

It can be written as a sum of positive squares in 4 ways, for example, as 593994384 + 21632232241 = 24372^2 + 147079^2 .

It is not a de Polignac number, because 22226226625 - 2⁵ = 22226226593 is a prime.

It is a magnanimous number.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 88904782 + ... + 88905031.

It is an arithmetic number, because the mean of its divisors is an integer number (3467291373).

Almost surely, 2^22226226625 is an apocalyptic number.

22226226625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22226226625 is a deficient number, since it is larger than the sum of its proper divisors (5512104359).

22226226625 is an equidigital number, since it uses as much as digits as its factorization.

22226226625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177809828 (or 177809818 counting only the distinct ones).

The product of its digits is 138240, while the sum is 37.

Adding to 22226226625 its reverse (52662262222), we get a palindrome (74888488847).

The spelling of 22226226625 in words is "twenty-two billion, two hundred twenty-six million, two hundred twenty-six thousand, six hundred twenty-five".