201000102010101 has 6 divisors (see below), whose sum is σ = 290333480681270. Its totient is φ = 134000068006728.

The previous prime is 201000102010093. The next prime is 201000102010111. The reversal of 201000102010101 is 101010201000102.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 140511389062500 + 60488712947601 = 11853750^2 + 7777449^2 .

It is not a de Polignac number, because 201000102010101 - 2³ = 201000102010093 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9), and also a Moran number because the ratio is a prime number: 22333344667789 = 201000102010101 / (2 + 0 + 1 + 0 + 0 + 0 + 1 + 0 + 2 + 0 + 1 + 0 + 1 + 0 + 1).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201000102010111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11166672333886 + ... + 11166672333903.

Almost surely, 2^{201000102010101} is an apocalyptic number.

It is an amenable number.

201000102010101 is a deficient number, since it is larger than the sum of its proper divisors (89333378671169).

201000102010101 is a wasteful number, since it uses less digits than its factorization.

201000102010101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22333344667795 (or 22333344667792 counting only the distinct ones).

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

Adding to 201000102010101 its reverse (101010201000102), we get a palindrome (302010303010203).

The spelling of 201000102010101 in words is "two hundred one trillion, one hundred two million, ten thousand, one hundred one".