1100200121012 has 6 divisors (see below), whose sum is σ = 1925350211778. Its totient is φ = 550100060504.

The previous prime is 1100200120969. The next prime is 1100200121021. The reversal of 1100200121012 is 2101210020011.

It can be written as a sum of positive squares in only one way, i.e., 1034870805796 + 65329315216 = 1017286^2 + 255596^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1100200120984 and 1100200121002.

It is a congruent number.

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 as a sum of consecutive naturals, namely, 137525015123 + ... + 137525015130.

It is an arithmetic number, because the mean of its divisors is an integer number (320891701963).

Almost surely, 2^{1100200121012} is an apocalyptic number.

It is an amenable number.

1100200121012 is a deficient number, since it is larger than the sum of its proper divisors (825150090766).

1100200121012 is a wasteful number, since it uses less digits than its factorization.

1100200121012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275050030257 (or 275050030255 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 1100200121012 its reverse (2101210020011), we get a palindrome (3201410141023).

The spelling of 1100200121012 in words is "one trillion, one hundred billion, two hundred million, one hundred twenty-one thousand, twelve".