201011210101 has 8 divisors (see below), whose sum is σ = 218616915384. Its totient is φ = 183711691200.

The previous prime is 201011210069. The next prime is 201011210111. The reversal of 201011210101 is 101012110102.

It can be written as a sum of positive squares in 4 ways, for example, as 5058907876 + 195952302225 = 71126^2 + 442665^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 201011210101 - 2⁵ = 201011210069 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201011210111) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 76545226 + ... + 76547851.

It is an arithmetic number, because the mean of its divisors is an integer number (27327114423).

Almost surely, 2^201011210101 is an apocalyptic number.

It is an amenable number.

201011210101 is a deficient number, since it is larger than the sum of its proper divisors (17605705283).

201011210101 is a wasteful number, since it uses less digits than its factorization.

201011210101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153093191.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 201011210101 its reverse (101012110102), we get a palindrome (302023320203).

Subtracting from 201011210101 its reverse (101012110102), we obtain a palindrome (99999099999).

The spelling of 201011210101 in words is "two hundred one billion, eleven million, two hundred ten thousand, one hundred one".