1222335815 has 16 divisors (see below), whose sum is σ = 1499409792. Its totient is φ = 956169984.

The previous prime is 1222335799. The next prime is 1222335817. The reversal of 1222335815 is 5185332221.

It is a cyclic number.

It is not a de Polignac number, because 1222335815 - 2⁴ = 1222335799 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222335817) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 373667 + ... + 376923.

It is an arithmetic number, because the mean of its divisors is an integer number (93713112).

Almost surely, 2^1222335815 is an apocalyptic number.

1222335815 is a deficient number, since it is larger than the sum of its proper divisors (277073977).

1222335815 is a wasteful number, since it uses less digits than its factorization.

1222335815 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4906.

The product of its digits is 14400, while the sum is 32.

The square root of 1222335815 is about 34961.9194982198. The cubic root of 1222335815 is about 1069.2112319484.

The spelling of 1222335815 in words is "one billion, two hundred twenty-two million, three hundred thirty-five thousand, eight hundred fifteen".