1222320115 has 16 divisors (see below), whose sum is σ = 1475610048. Its totient is φ = 971990656.

The previous prime is 1222320083. The next prime is 1222320157. The reversal of 1222320115 is 5110232221.

It is a cyclic number.

It is not a de Polignac number, because 1222320115 - 2⁵ = 1222320083 is a prime.

It is a super-2 number, since 2×1222320115² = 2988132927067226450, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1222320092 and 1222320101.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 889569 + ... + 890941.

It is an arithmetic number, because the mean of its divisors is an integer number (92225628).

Almost surely, 2^1222320115 is an apocalyptic number.

1222320115 is a deficient number, since it is larger than the sum of its proper divisors (253289933).

1222320115 is a wasteful number, since it uses less digits than its factorization.

1222320115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2318.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 1222320115 is about 34961.6949674926. The cubic root of 1222320115 is about 1069.2066541861.

Adding to 1222320115 its reverse (5110232221), we get a palindrome (6332552336).

The spelling of 1222320115 in words is "one billion, two hundred twenty-two million, three hundred twenty thousand, one hundred fifteen".