1200102000020 has 96 divisors (see below), whose sum is σ = 3173195402496. Its totient is φ = 370354176000.

The previous prime is 1200102000001. The next prime is 1200102000037. The reversal of 1200102000020 is 200002010021.

It is a junction number, because it is equal to n+sod(n) for n = 1200101999971 and 1200102000007.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3702317 + ... + 4013396.

It is an arithmetic number, because the mean of its divisors is an integer number (33054118776).

Almost surely, 2^{1200102000020} is an apocalyptic number.

1200102000020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1200102000020 is an abundant number, since it is smaller than the sum of its proper divisors (1973093402476).

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

1200102000020 is a wasteful number, since it uses less digits than its factorization.

1200102000020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7715841 (or 7715839 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 8.

Adding to 1200102000020 its reverse (200002010021), we get a palindrome (1400104010041).

The spelling of 1200102000020 in words is "one trillion, two hundred billion, one hundred two million, twenty", and thus it is an aban number.