201010000010121 has 6 divisors (see below), whose sum is σ = 290347777792410. Its totient is φ = 134006666673408.

The previous prime is 201010000010087. The next prime is 201010000010123. The reversal of 201010000010121 is 121010000010102.

It is a happy number.

201010000010121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 182228697622521 + 18781302387600 = 13499211^2 + 4333740^2 .

It is not a de Polignac number, because 201010000010121 - 2¹⁰ = 201010000009097 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9), and also a Moran number because the ratio is a prime number: 22334444445569 = 201010000010121 / (2 + 0 + 1 + 0 + 1 + 0 + 0 + 0 + 0 + 0 + 1 + 0 + 1 + 2 + 1).

It is not an unprimeable number, because it can be changed into a prime (201010000010123) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11167222222776 + ... + 11167222222793.

It is an arithmetic number, because the mean of its divisors is an integer number (48391296298735).

Almost surely, 2^{201010000010121} is an apocalyptic number.

It is an amenable number.

201010000010121 is a deficient number, since it is larger than the sum of its proper divisors (89337777782289).

201010000010121 is a wasteful number, since it uses less digits than its factorization.

201010000010121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22334444445575 (or 22334444445572 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 201010000010121 its reverse (121010000010102), we get a palindrome (322020000020223).

The spelling of 201010000010121 in words is "two hundred one trillion, ten billion, ten thousand, one hundred twenty-one".