201000020121101 has 4 divisors (see below), whose sum is σ = 201000061607100. Its totient is φ = 200999978635104.

The previous prime is 201000020121077. The next prime is 201000020121133. The reversal of 201000020121101 is 101121020000102.

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 129678025915876 + 71321994205225 = 11387626^2 + 8445235^2 .

It is a cyclic number.

It is not a de Polignac number, because 201000020121101 - 2¹⁴ = 201000020104717 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 (201000020123101) 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, 12341096 + ... + 23543633.

It is an arithmetic number, because the mean of its divisors is an integer number (50250015401775).

Almost surely, 2^{201000020121101} is an apocalyptic number.

It is an amenable number.

201000020121101 is a deficient number, since it is larger than the sum of its proper divisors (41485999).

201000020121101 is an equidigital number, since it uses as much as digits as its factorization.

201000020121101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41485998.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 201000020121101 its reverse (101121020000102), we get a palindrome (302121040121203).

The spelling of 201000020121101 in words is "two hundred one trillion, twenty million, one hundred twenty-one thousand, one hundred one".