12226281780120 has 64 divisors (see below), whose sum is σ = 36680032811520. Its totient is φ = 3260236255104.

The previous prime is 12226281780109. The next prime is 12226281780121. The reversal of 12226281780120 is 2108718262221.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12226281780121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2108287 + ... + 5375633.

It is an arithmetic number, because the mean of its divisors is an integer number (573125512680).

Almost surely, 2^{12226281780120} is an apocalyptic number.

12226281780120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12226281780120 is an abundant number, since it is smaller than the sum of its proper divisors (24453751031400).

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

12226281780120 is a wasteful number, since it uses less digits than its factorization.

12226281780120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3298544 (or 3298540 counting only the distinct ones).

The product of its (nonzero) digits is 86016, while the sum is 42.

The spelling of 12226281780120 in words is "twelve trillion, two hundred twenty-six billion, two hundred eighty-one million, seven hundred eighty thousand, one hundred twenty".