1100120020200 has 144 divisors (see below), whose sum is σ = 3727265731020. Its totient is φ = 290769131520.

The previous prime is 1100120020187. The next prime is 1100120020229. The reversal of 1100120020200 is 20200210011.

It can be written as a sum of positive squares in 6 ways, for example, as 114202091844 + 985917928356 = 337938^2 + 992934^2 .

It is a Harshad number since it is a multiple of its sum of digits (9).

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 35 ways as a sum of consecutive naturals, for example, 2500927 + ... + 2907726.

Almost surely, 2^{1100120020200} is an apocalyptic number.

1100120020200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1100120020200 is an abundant number, since it is smaller than the sum of its proper divisors (2627145710820).

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

1100120020200 is a wasteful number, since it uses less digits than its factorization.

1100120020200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5408788 (or 5408776 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 1100120020200 its reverse (20200210011), we get a palindrome (1120320230211).

The spelling of 1100120020200 in words is "one trillion, one hundred billion, one hundred twenty million, twenty thousand, two hundred".