201010012100101 has 4 divisors (see below), whose sum is σ = 201010040457772. Its totient is φ = 201009983742432.

The previous prime is 201010012100099. The next prime is 201010012100113. The reversal of 201010012100101 is 101001210010102.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 53321044119876 + 147688967980225 = 7302126^2 + 12152735^2 .

It is a cyclic number.

It is not a de Polignac number, because 201010012100101 - 2¹ = 201010012100099 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 (201010012100141) 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, 6832441 + ... + 21182593.

It is an arithmetic number, because the mean of its divisors is an integer number (50252510114443).

Almost surely, 2^{201010012100101} is an apocalyptic number.

It is an amenable number.

201010012100101 is a deficient number, since it is larger than the sum of its proper divisors (28357671).

201010012100101 is a wasteful number, since it uses less digits than its factorization.

201010012100101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28357670.

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

Adding to 201010012100101 its reverse (101001210010102), we get a palindrome (302011222110203).

The spelling of 201010012100101 in words is "two hundred one trillion, ten billion, twelve million, one hundred thousand, one hundred one".