1001201202100 has 108 divisors (see below), whose sum is σ = 2428549250400. Its totient is φ = 357902177600.

The previous prime is 1001201202073. The next prime is 1001201202229. The reversal of 1001201202100 is 12021021001.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 12681 + ... + 1415119.

Almost surely, 2^{1001201202100} is an apocalyptic number.

1001201202100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1001201202100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1214274625200).

1001201202100 is an abundant number, since it is smaller than the sum of its proper divisors (1427348048300).

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

1001201202100 is a wasteful number, since it uses less digits than its factorization.

1001201202100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1402534 (or 1402516 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 1001201202100 its reverse (12021021001), we get a palindrome (1013222223101).

The spelling of 1001201202100 in words is "one trillion, one billion, two hundred one million, two hundred two thousand, one hundred".