101010202101 has 12 divisors (see below), whose sum is σ = 146139341920. Its totient is φ = 67231342440.

The previous prime is 101010202079. The next prime is 101010202103. The reversal of 101010202101 is 101202010101.

It is a happy number.

It is not a de Polignac number, because 101010202101 - 2¹⁰ = 101010201077 is a prime.

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

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101010202103) 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, 9060145 + ... + 9071286.

Almost surely, 2^101010202101 is an apocalyptic number.

It is an amenable number.

101010202101 is a deficient number, since it is larger than the sum of its proper divisors (45129139819).

101010202101 is a wasteful number, since it uses less digits than its factorization.

101010202101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18132056 (or 18132053 counting only the distinct ones).

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

Adding to 101010202101 its reverse (101202010101), we get a palindrome (202212212202).

The spelling of 101010202101 in words is "one hundred one billion, ten million, two hundred two thousand, one hundred one".