222444045 has 12 divisors (see below), whose sum is σ = 385569756. Its totient is φ = 118636800.

The previous prime is 222444043. The next prime is 222444049. The reversal of 222444045 is 540444222.

It can be written as a sum of positive squares in 2 ways, for example, as 98366724 + 124077321 = 9918^2 + 11139^2 .

It is not a de Polignac number, because 222444045 - 2¹ = 222444043 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222444043) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2471556 + ... + 2471645.

It is an arithmetic number, because the mean of its divisors is an integer number (32130813).

Almost surely, 2^222444045 is an apocalyptic number.

It is an amenable number.

222444045 is a deficient number, since it is larger than the sum of its proper divisors (163125711).

222444045 is a wasteful number, since it uses less digits than its factorization.

222444045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4943212 (or 4943209 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 27.

The square root of 222444045 is about 14914.5581563786. The cubic root of 222444045 is about 605.9083366242.

Adding to 222444045 its reverse (540444222), we get a palindrome (762888267).

The spelling of 222444045 in words is "two hundred twenty-two million, four hundred forty-four thousand, forty-five".