222229445 has 4 divisors (see below), whose sum is σ = 266675340. Its totient is φ = 177783552.

The previous prime is 222229439. The next prime is 222229463. The reversal of 222229445 is 544922222.

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 129800449 + 92428996 = 11393^2 + 9614^2 .

It is a cyclic number.

It is not a de Polignac number, because 222229445 - 2¹⁸ = 221967301 is a prime.

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, 22222940 + ... + 22222949.

It is an arithmetic number, because the mean of its divisors is an integer number (66668835).

Almost surely, 2^222229445 is an apocalyptic number.

It is an amenable number.

222229445 is a deficient number, since it is larger than the sum of its proper divisors (44445895).

222229445 is an equidigital number, since it uses as much as digits as its factorization.

222229445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44445894.

The product of its digits is 23040, while the sum is 32.

The square root of 222229445 is about 14907.3621073616. The cubic root of 222229445 is about 605.7134265354.

The spelling of 222229445 in words is "two hundred twenty-two million, two hundred twenty-nine thousand, four hundred forty-five".