12722267505 has 8 divisors (see below), whose sum is σ = 20355628032. Its totient is φ = 6785209328.

The previous prime is 12722267497. The next prime is 12722267531. The reversal of 12722267505 is 50576222721.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12722267505 - 2³ = 12722267497 is a prime.

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 7 ways as a sum of consecutive naturals, for example, 424075569 + ... + 424075598.

It is an arithmetic number, because the mean of its divisors is an integer number (2544453504).

Almost surely, 2^12722267505 is an apocalyptic number.

12722267505 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12722267505 is a deficient number, since it is larger than the sum of its proper divisors (7633360527).

12722267505 is an equidigital number, since it uses as much as digits as its factorization.

12722267505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 848151175.

The product of its (nonzero) digits is 117600, while the sum is 39.

The spelling of 12722267505 in words is "twelve billion, seven hundred twenty-two million, two hundred sixty-seven thousand, five hundred five".