1021100200112 has 40 divisors (see below), whose sum is σ = 2062716787200. Its totient is φ = 489063439872.

The previous prime is 1021100200097. The next prime is 1021100200117. The reversal of 1021100200112 is 2110020011201.

It is a junction number, because it is equal to n+sod(n) for n = 1021100200093 and 1021100200102.

It is not an unprimeable number, because it can be changed into a prime (1021100200117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8605037 + ... + 8722892.

It is an arithmetic number, because the mean of its divisors is an integer number (51567919680).

Almost surely, 2^{1021100200112} is an apocalyptic number.

It is an amenable number.

1021100200112 is an abundant number, since it is smaller than the sum of its proper divisors (1041616587088).

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

1021100200112 is a wasteful number, since it uses less digits than its factorization.

1021100200112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17328093 (or 17328087 counting only the distinct ones).

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

Adding to 1021100200112 its reverse (2110020011201), we get a palindrome (3131120211313).

The spelling of 1021100200112 in words is "one trillion, twenty-one billion, one hundred million, two hundred thousand, one hundred twelve".