10001010221201 has 4 divisors (see below), whose sum is σ = 10058819529012. Its totient is φ = 9943200913392.

The previous prime is 10001010221143. The next prime is 10001010221207. The reversal of 10001010221201 is 10212201010001.

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 3794937763600 + 6206072457601 = 1948060^2 + 2491199^2 .

It is a cyclic number.

It is not a de Polignac number, because 10001010221201 - 2²² = 10001006026897 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (10001010221207) 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, 28904653646 + ... + 28904653991.

It is an arithmetic number, because the mean of its divisors is an integer number (2514704882253).

Almost surely, 2^{10001010221201} is an apocalyptic number.

It is an amenable number.

10001010221201 is a deficient number, since it is larger than the sum of its proper divisors (57809307811).

10001010221201 is an equidigital number, since it uses as much as digits as its factorization.

10001010221201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57809307810.

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

Adding to 10001010221201 its reverse (10212201010001), we get a palindrome (20213211231202).

The spelling of 10001010221201 in words is "ten trillion, one billion, ten million, two hundred twenty-one thousand, two hundred one".