22113430225 has 6 divisors (see below), whose sum is σ = 27420653510. Its totient is φ = 17690744160.

The previous prime is 22113430219. The next prime is 22113430267. The reversal of 22113430225 is 52203431122.

It can be written as a sum of positive squares in 3 ways, for example, as 7334894736 + 14778535489 = 85644^2 + 121567^2 .

It is not a de Polignac number, because 22113430225 - 2¹⁵ = 22113397457 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25), and also a Moran number because the ratio is a prime number: 884537209 = 22113430225 / (2 + 2 + 1 + 1 + 3 + 4 + 3 + 0 + 2 + 2 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 22113430225.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 442268580 + ... + 442268629.

Almost surely, 2^22113430225 is an apocalyptic number.

22113430225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22113430225 is a deficient number, since it is larger than the sum of its proper divisors (5307223285).

22113430225 is an equidigital number, since it uses as much as digits as its factorization.

22113430225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 884537219 (or 884537214 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

Adding to 22113430225 its reverse (52203431122), we get a palindrome (74316861347).

The spelling of 22113430225 in words is "twenty-two billion, one hundred thirteen million, four hundred thirty thousand, two hundred twenty-five".