222223730 has 8 divisors (see below), whose sum is σ = 400002732. Its totient is φ = 88889488.

The previous prime is 222223709. The next prime is 222223733. The reversal of 222223730 is 37322222.

It can be written as a sum of positive squares in 2 ways, for example, as 208600249 + 13623481 = 14443^2 + 3691^2 .

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

It is a super-2 number, since 2×222223730² = 98766772350225800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 222223696 and 222223705.

It is not an unprimeable number, because it can be changed into a prime (222223733) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11111177 + ... + 11111196.

Almost surely, 2^222223730 is an apocalyptic number.

222223730 is a deficient number, since it is larger than the sum of its proper divisors (177779002).

222223730 is a wasteful number, since it uses less digits than its factorization.

222223730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22222380.

The product of its (nonzero) digits is 2016, while the sum is 23.

The square root of 222223730 is about 14907.1704223169. The cubic root of 222223730 is about 605.7082341813.

Adding to 222223730 its reverse (37322222), we get a palindrome (259545952).

It can be divided in two parts, 22222 and 3730, that added together give a palindrome (25952).

The spelling of 222223730 in words is "two hundred twenty-two million, two hundred twenty-three thousand, seven hundred thirty".