1001010202101 has 96 divisors (see below), whose sum is σ = 1881642147840. Its totient is φ = 497970778752.

The previous prime is 1001010202099. The next prime is 1001010202109. The reversal of 1001010202101 is 1012020101001.

It is a happy number.

It is not a de Polignac number, because 1001010202101 - 2¹ = 1001010202099 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 (1001010202109) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 3325870 + ... + 3614336.

It is an arithmetic number, because the mean of its divisors is an integer number (19600439040).

Almost surely, 2^{1001010202101} is an apocalyptic number.

It is an amenable number.

1001010202101 is a deficient number, since it is larger than the sum of its proper divisors (880631945739).

1001010202101 is a wasteful number, since it uses less digits than its factorization.

1001010202101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 288735 (or 288732 counting only the distinct ones).

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

Adding to 1001010202101 its reverse (1012020101001), we get a palindrome (2013030303102).

The spelling of 1001010202101 in words is "one trillion, one billion, ten million, two hundred two thousand, one hundred one".