222004545 has 96 divisors (see below), whose sum is σ = 434367360. Its totient is φ = 96445440.

The previous prime is 222004543. The next prime is 222004553. The reversal of 222004545 is 545400222.

It is a happy number.

It is not a de Polignac number, because 222004545 - 2¹ = 222004543 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (222004543) by changing a digit.

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 95 ways as a sum of consecutive naturals, for example, 1597086 + ... + 1597224.

It is an arithmetic number, because the mean of its divisors is an integer number (4524660).

Almost surely, 2^222004545 is an apocalyptic number.

It is an amenable number.

222004545 is a deficient number, since it is larger than the sum of its proper divisors (212362815).

222004545 is a wasteful number, since it uses less digits than its factorization.

222004545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255 (or 248 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 24.

The square root of 222004545 is about 14899.8169451843. The cubic root of 222004545 is about 605.5090267847.

Adding to 222004545 its reverse (545400222), we get a palindrome (767404767).

The spelling of 222004545 in words is "two hundred twenty-two million, four thousand, five hundred forty-five".