1100211200100 has 54 divisors (see below), whose sum is σ = 3448550886690. Its totient is φ = 293389653120.

The previous prime is 1100211200071. The next prime is 1100211200131. The reversal of 1100211200100 is 10021120011.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 16492723776 + 1083718476324 = 128424^2 + 1041018^2 .

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 17 ways as a sum of consecutive naturals, for example, 611227545 + ... + 611229344.

Almost surely, 2^{1100211200100} is an apocalyptic number.

1100211200100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1100211200100 is an abundant number, since it is smaller than the sum of its proper divisors (2348339686590).

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

1100211200100 is a wasteful number, since it uses less digits than its factorization.

1100211200100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1222456909 (or 1222456899 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 1100211200100 its reverse (10021120011), we get a palindrome (1110232320111).

The spelling of 1100211200100 in words is "one trillion, one hundred billion, two hundred eleven million, two hundred thousand, one hundred".