21102202303001 has 4 divisors (see below), whose sum is σ = 21672532095012. Its totient is φ = 20531872510992.

The previous prime is 21102202302989. The next prime is 21102202303033. The reversal of 21102202303001 is 10030320220112.

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 16338127782025 + 4764074520976 = 4042045^2 + 2182676^2 .

It is a cyclic number.

It is not a de Polignac number, because 21102202303001 - 2¹⁴ = 21102202286617 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (21102202303051) 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, 285164895950 + ... + 285164896023.

It is an arithmetic number, because the mean of its divisors is an integer number (5418133023753).

Almost surely, 2^{21102202303001} is an apocalyptic number.

It is an amenable number.

21102202303001 is a deficient number, since it is larger than the sum of its proper divisors (570329792011).

21102202303001 is an equidigital number, since it uses as much as digits as its factorization.

21102202303001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 570329792010.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 21102202303001 its reverse (10030320220112), we get a palindrome (31132522523113).

The spelling of 21102202303001 in words is "twenty-one trillion, one hundred two billion, two hundred two million, three hundred three thousand, one".