10221211021201 has 4 divisors (see below), whose sum is σ = 10243382846004. Its totient is φ = 10199039196400.

The previous prime is 10221211021199. The next prime is 10221211021321. The reversal of 10221211021201 is 10212011212201.

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 2351637585025 + 7869573436176 = 1533505^2 + 2805276^2 .

It is a cyclic number.

It is not a de Polignac number, because 10221211021201 - 2¹ = 10221211021199 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10221211081201) 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, 11085911710 + ... + 11085912631.

It is an arithmetic number, because the mean of its divisors is an integer number (2560845711501).

Almost surely, 2^{10221211021201} is an apocalyptic number.

It is an amenable number.

10221211021201 is a deficient number, since it is larger than the sum of its proper divisors (22171824803).

10221211021201 is an equidigital number, since it uses as much as digits as its factorization.

10221211021201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22171824802.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 10221211021201 its reverse (10212011212201), we get a palindrome (20433222233402).

The spelling of 10221211021201 in words is "ten trillion, two hundred twenty-one billion, two hundred eleven million, twenty-one thousand, two hundred one".