1286222801 has 4 divisors (see below), whose sum is σ = 1286418672. Its totient is φ = 1286026932.

The previous prime is 1286222789. The next prime is 1286222867. The reversal of 1286222801 is 1082226821.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1286222801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1286222101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 87731 + ... + 101336.

It is an arithmetic number, because the mean of its divisors is an integer number (321604668).

Almost surely, 2^1286222801 is an apocalyptic number.

It is an amenable number.

1286222801 is a deficient number, since it is larger than the sum of its proper divisors (195871).

1286222801 is an equidigital number, since it uses as much as digits as its factorization.

1286222801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195870.

The product of its (nonzero) digits is 6144, while the sum is 32.

The square root of 1286222801 is about 35863.9484859099. The cubic root of 1286222801 is about 1087.5237113956.

The spelling of 1286222801 in words is "one billion, two hundred eighty-six million, two hundred twenty-two thousand, eight hundred one".