12478669122 has 32 divisors (see below), whose sum is σ = 25170868800. Its totient is φ = 4124049408.

The previous prime is 12478669117. The next prime is 12478669141. The reversal of 12478669122 is 22196687421.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 631618 + ... + 651074.

It is an arithmetic number, because the mean of its divisors is an integer number (786589650).

Almost surely, 2^12478669122 is an apocalyptic number.

12478669122 is an abundant number, since it is smaller than the sum of its proper divisors (12692199678).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12478669122 is a wasteful number, since it uses less digits than its factorization.

12478669122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20370.

The product of its digits is 580608, while the sum is 48.

The spelling of 12478669122 in words is "twelve billion, four hundred seventy-eight million, six hundred sixty-nine thousand, one hundred twenty-two".