222345245 has 4 divisors (see below), whose sum is σ = 266814300. Its totient is φ = 177876192.

The previous prime is 222345191. The next prime is 222345257. The reversal of 222345245 is 542543222.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 98446084 + 123899161 = 9922^2 + 11131^2 .

It is a cyclic number.

It is not a de Polignac number, because 222345245 - 2⁶ = 222345181 is a prime.

It is a super-2 number, since 2×222345245² = 98874815948220050, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22234520 + ... + 22234529.

It is an arithmetic number, because the mean of its divisors is an integer number (66703575).

Almost surely, 2^222345245 is an apocalyptic number.

It is an amenable number.

222345245 is a deficient number, since it is larger than the sum of its proper divisors (44469055).

222345245 is an equidigital number, since it uses as much as digits as its factorization.

222345245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44469054.

The product of its digits is 19200, while the sum is 29.

The square root of 222345245 is about 14911.2455884812. The cubic root of 222345245 is about 605.8186172691.

Adding to 222345245 its reverse (542543222), we get a palindrome (764888467).

The spelling of 222345245 in words is "two hundred twenty-two million, three hundred forty-five thousand, two hundred forty-five".