1218080012 has 12 divisors (see below), whose sum is σ = 2176994400. Its totient is φ = 596081616.

The previous prime is 1218079969. The next prime is 1218080041. The reversal of 1218080012 is 2100808121.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1218080012.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3239387 + ... + 3239762.

It is an arithmetic number, because the mean of its divisors is an integer number (181416200).

Almost surely, 2^1218080012 is an apocalyptic number.

It is an amenable number.

1218080012 is a deficient number, since it is larger than the sum of its proper divisors (958914388).

1218080012 is a wasteful number, since it uses less digits than its factorization.

1218080012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6479200 (or 6479198 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 23.

The square root of 1218080012 is about 34901.0030228359. The cubic root of 1218080012 is about 1067.9688991584.

Adding to 1218080012 its reverse (2100808121), we get a palindrome (3318888133).

The spelling of 1218080012 in words is "one billion, two hundred eighteen million, eighty thousand, twelve".