1021001110200 has 144 divisors (see below), whose sum is σ = 3521534239080. Its totient is φ = 264908378880.

The previous prime is 1021001110193. The next prime is 1021001110253. The reversal of 1021001110200 is 20111001201.

It is a happy number.

1021001110200 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 7598574 + ... + 7731773.

Almost surely, 2^{1021001110200} is an apocalyptic number.

1021001110200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1021001110200 is an abundant number, since it is smaller than the sum of its proper divisors (2500533128880).

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

1021001110200 is a wasteful number, since it uses less digits than its factorization.

1021001110200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15330406 (or 15330394 counting only the distinct ones).

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

Adding to 1021001110200 its reverse (20111001201), we get a palindrome (1041112111401).

The spelling of 1021001110200 in words is "one trillion, twenty-one billion, one million, one hundred ten thousand, two hundred".