1286222799 has 4 divisors (see below), whose sum is σ = 1714963736. Its totient is φ = 857481864.

The previous prime is 1286222789. The next prime is 1286222867. The reversal of 1286222799 is 9972226821.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1286222799 - 2⁴ = 1286222783 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1286222789) 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 3 ways as a sum of consecutive naturals, for example, 214370464 + ... + 214370469.

It is an arithmetic number, because the mean of its divisors is an integer number (428740934).

Almost surely, 2^1286222799 is an apocalyptic number.

1286222799 is a deficient number, since it is larger than the sum of its proper divisors (428740937).

1286222799 is an equidigital number, since it uses as much as digits as its factorization.

1286222799 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 428740936.

The product of its digits is 435456, while the sum is 48.

The square root of 1286222799 is about 35863.9484580268. The cubic root of 1286222799 is about 1087.5237108320.

The spelling of 1286222799 in words is "one billion, two hundred eighty-six million, two hundred twenty-two thousand, seven hundred ninety-nine".