1200100020200 has 192 divisors, whose sum is σ = 2904965320320. Its totient is φ = 460703232000.

The previous prime is 1200100020199. The next prime is 1200100020211. The reversal of 1200100020200 is 20200010021.

It is a Harshad number since it is a multiple of its sum of digits (8).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 655433285 + ... + 655435115.

It is an arithmetic number, because the mean of its divisors is an integer number (15130027710).

Almost surely, 2^{1200100020200} is an apocalyptic number.

1200100020200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1200100020200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1452482660160).

1200100020200 is an abundant number, since it is smaller than the sum of its proper divisors (1704865300120).

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

1200100020200 is a wasteful number, since it uses less digits than its factorization.

1200100020200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3148 (or 3139 counting only the distinct ones).

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

Adding to 1200100020200 its reverse (20200010021), we get a palindrome (1220300030221).

The spelling of 1200100020200 in words is "one trillion, two hundred billion, one hundred million, twenty thousand, two hundred".