222127725 has 24 divisors (see below), whose sum is σ = 369302752. Its totient is φ = 117806400.

The previous prime is 222127693. The next prime is 222127747. The reversal of 222127725 is 527721222.

It is not a de Polignac number, because 222127725 - 2⁵ = 222127693 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 222127692 and 222127701.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5394 + ... + 21756.

Almost surely, 2^222127725 is an apocalyptic number.

222127725 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

222127725 is a deficient number, since it is larger than the sum of its proper divisors (147175027).

222127725 is a wasteful number, since it uses less digits than its factorization.

With its predecessor (222127724) it forms a Ruth-Aaron pair, since the sum of their distinct prime factors is the same (16552).

222127725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16557 (or 16552 counting only the distinct ones).

The product of its digits is 7840, while the sum is 30.

The square root of 222127725 is about 14903.9499797872. The cubic root of 222127725 is about 605.6209956805.

Adding to 222127725 its reverse (527721222), we get a palindrome (749848947).

The spelling of 222127725 in words is "two hundred twenty-two million, one hundred twenty-seven thousand, seven hundred twenty-five".