221423314325 has 24 divisors (see below), whose sum is σ = 278862526656. Its totient is φ = 174381200000.

The previous prime is 221423314319. The next prime is 221423314361. The reversal of 221423314325 is 523413324122.

It is not a de Polignac number, because 221423314325 - 2¹⁴ = 221423297941 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 221423314291 and 221423314300.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 393200 + ... + 772950.

It is an arithmetic number, because the mean of its divisors is an integer number (11619271944).

Almost surely, 2^221423314325 is an apocalyptic number.

221423314325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

221423314325 is a deficient number, since it is larger than the sum of its proper divisors (57439212331).

221423314325 is a wasteful number, since it uses less digits than its factorization.

221423314325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 380125 (or 380120 counting only the distinct ones).

The product of its digits is 34560, while the sum is 32.

Adding to 221423314325 its reverse (523413324122), we get a palindrome (744836638447).

The spelling of 221423314325 in words is "two hundred twenty-one billion, four hundred twenty-three million, three hundred fourteen thousand, three hundred twenty-five".