201010101 has 16 divisors (see below), whose sum is σ = 282590400. Its totient is φ = 126741888.

The previous prime is 201010097. The next prime is 201010123. The reversal of 201010101 is 101010102.

It is not a de Polignac number, because 201010101 - 2² = 201010097 is a prime.

201010101 is a modest number, since divided by 10101 gives 201 as remainder.

It is a self number, because there is not a number n which added to its sum of digits gives 201010101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201010171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35985 + ... + 41193.

It is an arithmetic number, because the mean of its divisors is an integer number (17661900).

Almost surely, 2^201010101 is an apocalyptic number.

It is an amenable number.

201010101 is a deficient number, since it is larger than the sum of its proper divisors (81580299).

201010101 is a wasteful number, since it uses less digits than its factorization.

201010101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5908.

The product of its (nonzero) digits is 2, while the sum is 6.

The square root of 201010101 is about 14177.8031090857. The cubic root of 201010101 is about 585.7864125873.

Adding to 201010101 its reverse (101010102), we get a palindrome (302020203).

Subtracting from 201010101 its reverse (101010102), we obtain a palindrome (99999999).

The spelling of 201010101 in words is "two hundred one million, ten thousand, one hundred one".