1200812812700 has 36 divisors (see below), whose sum is σ = 2608286548560. Its totient is φ = 479860103040.

The previous prime is 1200812812687. The next prime is 1200812812709. The reversal of 1200812812700 is 72182180021.

It is a happy number.

It is a super-2 number, since 2×1200812812700² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1200812812709) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 5708960 + ... + 5915559.

Almost surely, 2^{1200812812700} is an apocalyptic number.

1200812812700 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1200812812700 is an abundant number, since it is smaller than the sum of its proper divisors (1407473735860).

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

1200812812700 is a wasteful number, since it uses less digits than its factorization.

1200812812700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11625566 (or 11625559 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 32.

Adding to 1200812812700 its reverse (72182180021), we get a palindrome (1272994992721).

The spelling of 1200812812700 in words is "one trillion, two hundred billion, eight hundred twelve million, eight hundred twelve thousand, seven hundred".