221123232325 has 6 divisors (see below), whose sum is σ = 274192808114. Its totient is φ = 176898585840.

The previous prime is 221123232299. The next prime is 221123232347. The reversal of 221123232325 is 523232321122.

It can be written as a sum of positive squares in 3 ways, for example, as 3311542116 + 217811690209 = 57546^2 + 466703^2 .

It is not a de Polignac number, because 221123232325 - 2²³ = 221114843717 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 221123232293 and 221123232302.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4422464622 + ... + 4422464671.

Almost surely, 2^221123232325 is an apocalyptic number.

221123232325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

221123232325 is a deficient number, since it is larger than the sum of its proper divisors (53069575789).

221123232325 is an equidigital number, since it uses as much as digits as its factorization.

221123232325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8844929303 (or 8844929298 counting only the distinct ones).

The product of its digits is 8640, while the sum is 28.

Adding to 221123232325 its reverse (523232321122), we get a palindrome (744355553447).

The spelling of 221123232325 in words is "two hundred twenty-one billion, one hundred twenty-three million, two hundred thirty-two thousand, three hundred twenty-five".