12248122815 has 24 divisors (see below), whose sum is σ = 21249173088. Its totient is φ = 6526457280.

The previous prime is 12248122813. The next prime is 12248122841. The reversal of 12248122815 is 51822184221.

It is a happy number.

It is not a de Polignac number, because 12248122815 - 2¹ = 12248122813 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12248122815.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12248122813) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 71571 + ... + 172100.

It is an arithmetic number, because the mean of its divisors is an integer number (885382212).

Almost surely, 2^12248122815 is an apocalyptic number.

12248122815 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12248122815 is a deficient number, since it is larger than the sum of its proper divisors (9001050273).

12248122815 is a wasteful number, since it uses less digits than its factorization.

12248122815 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244799 (or 244796 counting only the distinct ones).

The product of its digits is 20480, while the sum is 36.

The spelling of 12248122815 in words is "twelve billion, two hundred forty-eight million, one hundred twenty-two thousand, eight hundred fifteen".