222244331 has 4 divisors (see below), whose sum is σ = 231907152. Its totient is φ = 212581512.

The previous prime is 222244307. The next prime is 222244343. The reversal of 222244331 is 133442222.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 133442222 = 2 ⋅66721111.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-222244331 is a prime.

It is a super-2 number, since 2×222244331² = 98785085323275122, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (23), and also a Moran number because the ratio is a prime number: 9662797 = 222244331 / (2 + 2 + 2 + 2 + 4 + 4 + 3 + 3 + 1).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 222244297 and 222244306.

It is not an unprimeable number, because it can be changed into a prime (222244381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4831376 + ... + 4831421.

It is an arithmetic number, because the mean of its divisors is an integer number (57976788).

Almost surely, 2^222244331 is an apocalyptic number.

222244331 is a deficient number, since it is larger than the sum of its proper divisors (9662821).

222244331 is an equidigital number, since it uses as much as digits as its factorization.

222244331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9662820.

The product of its digits is 2304, while the sum is 23.

The square root of 222244331 is about 14907.8613825055. The cubic root of 222244331 is about 605.7269507690.

Adding to 222244331 its reverse (133442222), we get a palindrome (355686553).

The spelling of 222244331 in words is "two hundred twenty-two million, two hundred forty-four thousand, three hundred thirty-one".