1021100200101 has 12 divisors (see below), whose sum is σ = 1561682659212. Its totient is φ = 640690321536.

The previous prime is 1021100200097. The next prime is 1021100200117. The reversal of 1021100200101 is 1010020011201.

It is a happy number.

1021100200101 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 708965684001 + 312134516100 = 842001^2 + 558690^2 .

It is not a de Polignac number, because 1021100200101 - 2² = 1021100200097 is a prime.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1021100200121) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3336928606 + ... + 3336928911.

It is an arithmetic number, because the mean of its divisors is an integer number (130140221601).

Almost surely, 2^{1021100200101} is an apocalyptic number.

It is an amenable number.

1021100200101 is a deficient number, since it is larger than the sum of its proper divisors (540582459111).

1021100200101 is a wasteful number, since it uses less digits than its factorization.

1021100200101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6673857540 (or 6673857537 counting only the distinct ones).

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

Adding to 1021100200101 its reverse (1010020011201), we get a palindrome (2031120211302).

The spelling of 1021100200101 in words is "one trillion, twenty-one billion, one hundred million, two hundred thousand, one hundred one".