222223145 has 8 divisors (see below), whose sum is σ = 280703040. Its totient is φ = 168421680.

The previous prime is 222223109. The next prime is 222223151. The reversal of 222223145 is 541322222.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 222223145 - 2⁶ = 222223081 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 222223145.

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 7 ways as a sum of consecutive naturals, for example, 1169501 + ... + 1169690.

It is an arithmetic number, because the mean of its divisors is an integer number (35087880).

Almost surely, 2^222223145 is an apocalyptic number.

It is an amenable number.

222223145 is a deficient number, since it is larger than the sum of its proper divisors (58479895).

222223145 is a wasteful number, since it uses less digits than its factorization.

222223145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2339215.

The product of its digits is 1920, while the sum is 23.

The square root of 222223145 is about 14907.1508008741. The cubic root of 222223145 is about 605.7077026755.

Adding to 222223145 its reverse (541322222), we get a palindrome (763545367).

The spelling of 222223145 in words is "two hundred twenty-two million, two hundred twenty-three thousand, one hundred forty-five".