222214745 has 4 divisors (see below), whose sum is σ = 266657700. Its totient is φ = 177771792.

The previous prime is 222214723. The next prime is 222214757. The reversal of 222214745 is 547412222.

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 65739664 + 156475081 = 8108^2 + 12509^2 .

It is a cyclic number.

It is not a de Polignac number, because 222214745 - 2¹⁶ = 222149209 is a prime.

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 3 ways as a sum of consecutive naturals, for example, 22221470 + ... + 22221479.

It is an arithmetic number, because the mean of its divisors is an integer number (66664425).

Almost surely, 2^222214745 is an apocalyptic number.

It is an amenable number.

222214745 is a deficient number, since it is larger than the sum of its proper divisors (44442955).

222214745 is an equidigital number, since it uses as much as digits as its factorization.

222214745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44442954.

The product of its digits is 8960, while the sum is 29.

The square root of 222214745 is about 14906.8690542313. The cubic root of 222214745 is about 605.7000706939.

Adding to 222214745 its reverse (547412222), we get a palindrome (769626967).

The spelling of 222214745 in words is "two hundred twenty-two million, two hundred fourteen thousand, seven hundred forty-five".