222045025 has 36 divisors (see below), whose sum is σ = 291610800. Its totient is φ = 167661760.

The previous prime is 222045011. The next prime is 222045067. The reversal of 222045025 is 520540222.

It is a happy number.

It is not a de Polignac number, because 222045025 - 2⁹ = 222044513 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 222044987 and 222045005.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1240386 + ... + 1240564.

It is an arithmetic number, because the mean of its divisors is an integer number (8100300).

Almost surely, 2^222045025 is an apocalyptic number.

222045025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

222045025 is a deficient number, since it is larger than the sum of its proper divisors (69565775).

222045025 is a wasteful number, since it uses less digits than its factorization.

222045025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 306 (or 272 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 22.

The square root of 222045025 is about 14901.1752892180. The cubic root of 222045025 is about 605.5458271060.

Adding to 222045025 its reverse (520540222), we get a palindrome (742585247).

The spelling of 222045025 in words is "two hundred twenty-two million, forty-five thousand, twenty-five".