1215886081412 has 12 divisors (see below), whose sum is σ = 2163865060560. Its totient is φ = 597638921256.

The previous prime is 1215886081393. The next prime is 1215886081427. The reversal of 1215886081412 is 2141806885121.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2576029598 + ... + 2576030069.

It is an arithmetic number, because the mean of its divisors is an integer number (180322088380).

Almost surely, 2^{1215886081412} is an apocalyptic number.

It is an amenable number.

1215886081412 is a deficient number, since it is larger than the sum of its proper divisors (947978979148).

1215886081412 is a wasteful number, since it uses less digits than its factorization.

1215886081412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5152059730 (or 5152059728 counting only the distinct ones).

The product of its (nonzero) digits is 245760, while the sum is 47.

The spelling of 1215886081412 in words is "one trillion, two hundred fifteen billion, eight hundred eighty-six million, eighty-one thousand, four hundred twelve".