201020101121101 has 4 divisors (see below), whose sum is σ = 212844812951772. Its totient is φ = 189195389290432.

The previous prime is 201020101121089. The next prime is 201020101121159. The reversal of 201020101121101 is 101121101020102.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 75973449875625 + 125046651245476 = 8716275^2 + 11182426^2 .

It is not a de Polignac number, because 201020101121101 - 2¹¹ = 201020101119053 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 (201020101161101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5912355915310 + ... + 5912355915343.

It is an arithmetic number, because the mean of its divisors is an integer number (53211203237943).

Almost surely, 2^{201020101121101} is an apocalyptic number.

It is an amenable number.

201020101121101 is a deficient number, since it is larger than the sum of its proper divisors (11824711830671).

201020101121101 is a wasteful number, since it uses less digits than its factorization.

201020101121101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11824711830670.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 201020101121101 its reverse (101121101020102), we get a palindrome (302141202141203).

The spelling of 201020101121101 in words is "two hundred one trillion, twenty billion, one hundred one million, one hundred twenty-one thousand, one hundred one".