22220043325 has 6 divisors (see below), whose sum is σ = 27552853754. Its totient is φ = 17776034640.

The previous prime is 22220043271. The next prime is 22220043331. The reversal of 22220043325 is 52334002222.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 13380964 + 22206662361 = 3658^2 + 149019^2 .

It is not a de Polignac number, because 22220043325 - 2¹⁹ = 22219519037 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: 888801733 = 22220043325 / (2 + 2 + 2 + 2 + 0 + 0 + 4 + 3 + 3 + 2 + 5).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22220043325.

It is a congruent number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 444400842 + ... + 444400891.

Almost surely, 2^22220043325 is an apocalyptic number.

22220043325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22220043325 is a deficient number, since it is larger than the sum of its proper divisors (5332810429).

22220043325 is an equidigital number, since it uses as much as digits as its factorization.

22220043325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 888801743 (or 888801738 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 25.

Adding to 22220043325 its reverse (52334002222), we get a palindrome (74554045547).

The spelling of 22220043325 in words is "twenty-two billion, two hundred twenty million, forty-three thousand, three hundred twenty-five".