1200012760000 has 70 divisors (see below), whose sum is σ = 2975641739840. Its totient is φ = 480005088000.

The previous prime is 1200012759983. The next prime is 1200012760019. The reversal of 1200012760000 is 672100021.

It is a self number, because there is not a number n which added to its sum of digits gives 1200012760000.

It is a congruent number.

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 9 ways as a sum of consecutive naturals, for example, 14960160 + ... + 15040159.

It is an arithmetic number, because the mean of its divisors is an integer number (42509167712).

Almost surely, 2^{1200012760000} is an apocalyptic number.

1200012760000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1200012760000 is an abundant number, since it is smaller than the sum of its proper divisors (1775628979840).

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

1200012760000 is an frugal number, since it uses more digits than its factorization.

1200012760000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30000351 (or 30000326 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 19.

Adding to 1200012760000 its reverse (672100021), we get a palindrome (1200684860021).

The spelling of 1200012760000 in words is "one trillion, two hundred billion, twelve million, seven hundred sixty thousand".