1227643686212 has 48 divisors (see below), whose sum is σ = 2301067440000. Its totient is φ = 571664797440.

The previous prime is 1227643686209. The next prime is 1227643686259. The reversal of 1227643686212 is 2126863467221.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1556114 + ... + 2208342.

It is an arithmetic number, because the mean of its divisors is an integer number (47938905000).

Almost surely, 2^{1227643686212} is an apocalyptic number.

It is an amenable number.

1227643686212 is a deficient number, since it is larger than the sum of its proper divisors (1073423753788).

1227643686212 is a wasteful number, since it uses less digits than its factorization.

1227643686212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 652796 (or 652794 counting only the distinct ones).

The product of its digits is 2322432, while the sum is 50.

The spelling of 1227643686212 in words is "one trillion, two hundred twenty-seven billion, six hundred forty-three million, six hundred eighty-six thousand, two hundred twelve".