1222502018 has 16 divisors (see below), whose sum is σ = 1906633080. Its totient is φ = 587172096.

The previous prime is 1222501993. The next prime is 1222502023. The reversal of 1222502018 is 8102052221.

It can be written as a sum of positive squares in 4 ways, for example, as 1109356249 + 113145769 = 33307^2 + 10637^2 .

It is a super-2 number, since 2×1222502018² = 2989022368028144648, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1222501984 and 1222502002.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42071 + ... + 64922.

Almost surely, 2^1222502018 is an apocalyptic number.

1222502018 is a deficient number, since it is larger than the sum of its proper divisors (684131062).

1222502018 is a wasteful number, since it uses less digits than its factorization.

1222502018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107221.

The product of its (nonzero) digits is 640, while the sum is 23.

The square root of 1222502018 is about 34964.2963321157. The cubic root of 1222502018 is about 1069.2596905521.

Adding to 1222502018 its reverse (8102052221), we get a palindrome (9324554239).

The spelling of 1222502018 in words is "one billion, two hundred twenty-two million, five hundred two thousand, eighteen".