1212327316625 has 16 divisors (see below), whose sum is σ = 1592615256960. Its totient is φ = 918816490800.

The previous prime is 1212327316609. The next prime is 1212327316631. The reversal of 1212327316625 is 5266137232121.

It is not a de Polignac number, because 1212327316625 - 2⁴ = 1212327316609 is a prime.

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, 255224429 + ... + 255229178.

It is an arithmetic number, because the mean of its divisors is an integer number (99538453560).

Almost surely, 2^{1212327316625} is an apocalyptic number.

It is an amenable number.

1212327316625 is a deficient number, since it is larger than the sum of its proper divisors (380287940335).

1212327316625 is an equidigital number, since it uses as much as digits as its factorization.

1212327316625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 510453641 (or 510453631 counting only the distinct ones).

The product of its digits is 181440, while the sum is 41.

The spelling of 1212327316625 in words is "one trillion, two hundred twelve billion, three hundred twenty-seven million, three hundred sixteen thousand, six hundred twenty-five".