12225283818 has 32 divisors (see below), whose sum is σ = 27293663232. Its totient is φ = 3618476400.

The previous prime is 12225283799. The next prime is 12225283843. The reversal of 12225283818 is 81838252221.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 12225283818.

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, 2151018 + ... + 2156693.

It is an arithmetic number, because the mean of its divisors is an integer number (852926976).

Almost surely, 2^12225283818 is an apocalyptic number.

12225283818 is an abundant number, since it is smaller than the sum of its proper divisors (15068379414).

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

12225283818 is a wasteful number, since it uses less digits than its factorization.

12225283818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4307770.

The product of its digits is 122880, while the sum is 42.

The spelling of 12225283818 in words is "twelve billion, two hundred twenty-five million, two hundred eighty-three thousand, eight hundred eighteen".