222740775 has 18 divisors (see below), whose sum is σ = 398953880. Its totient is φ = 118794960.

The previous prime is 222740761. The next prime is 222740789. The reversal of 222740775 is 577047222.

It is an interprime number because it is at equal distance from previous prime (222740761) and next prime (222740789).

It is not a de Polignac number, because 222740775 - 2¹¹ = 222738727 is a prime.

It is a super-2 number, since 2×222740775² = 99226905695201250, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 494755 + ... + 495204.

Almost surely, 2^222740775 is an apocalyptic number.

222740775 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

222740775 is a deficient number, since it is larger than the sum of its proper divisors (176213105).

222740775 is a wasteful number, since it uses less digits than its factorization.

222740775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 989975 (or 989967 counting only the distinct ones).

The product of its (nonzero) digits is 54880, while the sum is 36.

The square root of 222740775 is about 14924.5025042713. The cubic root of 222740775 is about 606.1776347535.

Adding to 222740775 its reverse (577047222), we get a palindrome (799787997).

The spelling of 222740775 in words is "two hundred twenty-two million, seven hundred forty thousand, seven hundred seventy-five".