223252022225 has 6 divisors (see below), whose sum is σ = 276832507590. Its totient is φ = 178601617760.

The previous prime is 223252022221. The next prime is 223252022233. The reversal of 223252022225 is 522220252322.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 8760772801 + 214491249424 = 93599^2 + 463132^2 .

It is not a de Polignac number, because 223252022225 - 2² = 223252022221 is a prime.

It is a super-3 number, since 3×223252022225³ (a number of 35 digits) contains 333 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (223252022221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4465040420 + ... + 4465040469.

It is an arithmetic number, because the mean of its divisors is an integer number (46138751265).

Almost surely, 2^223252022225 is an apocalyptic number.

223252022225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

223252022225 is a deficient number, since it is larger than the sum of its proper divisors (53580485365).

223252022225 is an equidigital number, since it uses as much as digits as its factorization.

223252022225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8930080899 (or 8930080894 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 29.

Adding to 223252022225 its reverse (522220252322), we get a palindrome (745472274547).

The spelling of 223252022225 in words is "two hundred twenty-three billion, two hundred fifty-two million, twenty-two thousand, two hundred twenty-five".